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Finding the Fourth Proportional to 502,139.58, 753,108.66 and 245,861.73

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Solution

The fourth proportional to 502,139.58, 753,108.66 and 245,861.73 is: 368,743.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,139.58 : 753,108.66 = 245,861.73 : x
  2. Step 2: Convert to fraction form
    502,139.58/753,108.66 = 245,861.73/x
  3. Step 3: Cross multiply
    502,139.58x = 753,108.66 × 245,861.73
  4. Step 4: Simplify right side
    502,139.58x = 185,160,594,260.04
  5. Step 5: Solve for x
    x = 185,160,594,260.04/502,139.58
  6. Step 6: Final answer
    x = 368,743.28

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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.