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Finding the Fourth Proportional to 382.05, 572.70 and 150.86

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Solution

The fourth proportional to 382.05, 572.70 and 150.86 is: 226.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    382.05 : 572.70 = 150.86 : x
  2. Step 2: Convert to fraction form
    382.05/572.70 = 150.86/x
  3. Step 3: Cross multiply
    382.05x = 572.70 × 150.86
  4. Step 4: Simplify right side
    382.05x = 86,397.52
  5. Step 5: Solve for x
    x = 86,397.52/382.05
  6. Step 6: Final answer
    x = 226.14

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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.