Home / 255,430.85-352,505.50-142,253.60

Finding the Fourth Proportional to 255,430.85, 352,505.50 and 142,253.60

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Solution

The fourth proportional to 255,430.85, 352,505.50 and 142,253.60 is: 196,316.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,430.85 : 352,505.50 = 142,253.60 : x
  2. Step 2: Convert to fraction form
    255,430.85/352,505.50 = 142,253.60/x
  3. Step 3: Cross multiply
    255,430.85x = 352,505.50 × 142,253.60
  4. Step 4: Simplify right side
    255,430.85x = 50,145,174,810.09
  5. Step 5: Solve for x
    x = 50,145,174,810.09/255,430.85
  6. Step 6: Final answer
    x = 196,316.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.