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Finding the Fourth Proportional to 218,586.72, 301,654.08 and 132,545.28

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Solution

The fourth proportional to 218,586.72, 301,654.08 and 132,545.28 is: 182,915.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,586.72 : 301,654.08 = 132,545.28 : x
  2. Step 2: Convert to fraction form
    218,586.72/301,654.08 = 132,545.28/x
  3. Step 3: Cross multiply
    218,586.72x = 301,654.08 × 132,545.28
  4. Step 4: Simplify right side
    218,586.72x = 39,982,824,496.74
  5. Step 5: Solve for x
    x = 39,982,824,496.74/218,586.72
  6. Step 6: Final answer
    x = 182,915.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.