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Finding the Fourth Proportional to 502,681.56, 754,142.58 and 147,687.72

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Solution

The fourth proportional to 502,681.56, 754,142.58 and 147,687.72 is: 221,566.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,681.56 : 754,142.58 = 147,687.72 : x
  2. Step 2: Convert to fraction form
    502,681.56/754,142.58 = 147,687.72/x
  3. Step 3: Cross multiply
    502,681.56x = 754,142.58 × 147,687.72
  4. Step 4: Simplify right side
    502,681.56x = 111,377,598,195.12
  5. Step 5: Solve for x
    x = 111,377,598,195.12/502,681.56
  6. Step 6: Final answer
    x = 221,566.91

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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.