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Finding the Fourth Proportional to 545.71, 752.75 and 324.62

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Solution

The fourth proportional to 545.71, 752.75 and 324.62 is: 447.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.71 : 752.75 = 324.62 : x
  2. Step 2: Convert to fraction form
    545.71/752.75 = 324.62/x
  3. Step 3: Cross multiply
    545.71x = 752.75 × 324.62
  4. Step 4: Simplify right side
    545.71x = 244,357.71
  5. Step 5: Solve for x
    x = 244,357.71/545.71
  6. Step 6: Final answer
    x = 447.78

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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.