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Finding the Fourth Proportional to 545.91, 818.25 and 237.30

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Solution

The fourth proportional to 545.91, 818.25 and 237.30 is: 355.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.91 : 818.25 = 237.30 : x
  2. Step 2: Convert to fraction form
    545.91/818.25 = 237.30/x
  3. Step 3: Cross multiply
    545.91x = 818.25 × 237.30
  4. Step 4: Simplify right side
    545.91x = 194,170.73
  5. Step 5: Solve for x
    x = 194,170.73/545.91
  6. Step 6: Final answer
    x = 355.68

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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.