Home / 355,427.12-533,140.67-142,290.98

Finding the Fourth Proportional to 355,427.12, 533,140.67 and 142,290.98

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Solution

The fourth proportional to 355,427.12, 533,140.67 and 142,290.98 is: 213,436.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,427.12 : 533,140.67 = 142,290.98 : x
  2. Step 2: Convert to fraction form
    355,427.12/533,140.67 = 142,290.98/x
  3. Step 3: Cross multiply
    355,427.12x = 533,140.67 × 142,290.98
  4. Step 4: Simplify right side
    355,427.12x = 75,861,105,035.00
  5. Step 5: Solve for x
    x = 75,861,105,035.00/355,427.12
  6. Step 6: Final answer
    x = 213,436.46

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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.