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Finding the Fourth Proportional to 335,489.78, 502,717.82 and 155,464.13

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Solution

The fourth proportional to 335,489.78, 502,717.82 and 155,464.13 is: 232,956.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,489.78 : 502,717.82 = 155,464.13 : x
  2. Step 2: Convert to fraction form
    335,489.78/502,717.82 = 155,464.13/x
  3. Step 3: Cross multiply
    335,489.78x = 502,717.82 × 155,464.13
  4. Step 4: Simplify right side
    335,489.78x = 78,154,586,396.87
  5. Step 5: Solve for x
    x = 78,154,586,396.87/335,489.78
  6. Step 6: Final answer
    x = 232,956.69

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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.