Home / 252,387.20-378,498.89-83,862.28

Finding the Fourth Proportional to 252,387.20, 378,498.89 and 83,862.28

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Solution

The fourth proportional to 252,387.20, 378,498.89 and 83,862.28 is: 125,766.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,387.20 : 378,498.89 = 83,862.28 : x
  2. Step 2: Convert to fraction form
    252,387.20/378,498.89 = 83,862.28/x
  3. Step 3: Cross multiply
    252,387.20x = 378,498.89 × 83,862.28
  4. Step 4: Simplify right side
    252,387.20x = 31,741,779,892.87
  5. Step 5: Solve for x
    x = 31,741,779,892.87/252,387.20
  6. Step 6: Final answer
    x = 125,766.20

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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.