Home / 355,430.37-533,145.54-142,294.23

Finding the Fourth Proportional to 355,430.37, 533,145.54 and 142,294.23

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Solution

The fourth proportional to 355,430.37, 533,145.54 and 142,294.23 is: 213,441.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,430.37 : 533,145.54 = 142,294.23 : x
  2. Step 2: Convert to fraction form
    355,430.37/533,145.54 = 142,294.23/x
  3. Step 3: Cross multiply
    355,430.37x = 533,145.54 × 142,294.23
  4. Step 4: Simplify right side
    355,430.37x = 75,863,534,092.23
  5. Step 5: Solve for x
    x = 75,863,534,092.23/355,430.37
  6. Step 6: Final answer
    x = 213,441.34

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Half scale
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Double scale
Find fourth proportional to 355,431.37, 533,147.04 and 142,295.23
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.