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Finding the Fourth Proportional to 486,545.70, 729,888.30 and 149,614.65

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Solution

The fourth proportional to 486,545.70, 729,888.30 and 149,614.65 is: 224,443.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,545.70 : 729,888.30 = 149,614.65 : x
  2. Step 2: Convert to fraction form
    486,545.70/729,888.30 = 149,614.65/x
  3. Step 3: Cross multiply
    486,545.70x = 729,888.30 × 149,614.65
  4. Step 4: Simplify right side
    486,545.70x = 109,201,982,543.60
  5. Step 5: Solve for x
    x = 109,201,982,543.60/486,545.70
  6. Step 6: Final answer
    x = 224,443.42

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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.