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Finding the Fourth Proportional to 382.47, 572.94 and 176.76

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Solution

The fourth proportional to 382.47, 572.94 and 176.76 is: 264.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    382.47 : 572.94 = 176.76 : x
  2. Step 2: Convert to fraction form
    382.47/572.94 = 176.76/x
  3. Step 3: Cross multiply
    382.47x = 572.94 × 176.76
  4. Step 4: Simplify right side
    382.47x = 101,269.13
  5. Step 5: Solve for x
    x = 101,269.13/382.47
  6. Step 6: Final answer
    x = 264.78

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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.