Home / 392,945.28-542,273.04-231,839.52

Finding the Fourth Proportional to 392,945.28, 542,273.04 and 231,839.52

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Solution

The fourth proportional to 392,945.28, 542,273.04 and 231,839.52 is: 319,943.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,945.28 : 542,273.04 = 231,839.52 : x
  2. Step 2: Convert to fraction form
    392,945.28/542,273.04 = 231,839.52/x
  3. Step 3: Cross multiply
    392,945.28x = 542,273.04 × 231,839.52
  4. Step 4: Simplify right side
    392,945.28x = 125,720,321,302.54
  5. Step 5: Solve for x
    x = 125,720,321,302.54/392,945.28
  6. Step 6: Final answer
    x = 319,943.58

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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.