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Finding the Fourth Proportional to 335,079.92, 502,618.86 and 135,398

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Solution

The fourth proportional to 335,079.92, 502,618.86 and 135,398 is: 203,096.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,079.92 : 502,618.86 = 135,398 : x
  2. Step 2: Convert to fraction form
    335,079.92/502,618.86 = 135,398/x
  3. Step 3: Cross multiply
    335,079.92x = 502,618.86 × 135,398
  4. Step 4: Simplify right side
    335,079.92x = 68,053,588,406.28
  5. Step 5: Solve for x
    x = 68,053,588,406.28/335,079.92
  6. Step 6: Final answer
    x = 203,096.59

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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.