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Finding the Fourth Proportional to 562.64, 843.98 and 151.81

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Solution

The fourth proportional to 562.64, 843.98 and 151.81 is: 227.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.64 : 843.98 = 151.81 : x
  2. Step 2: Convert to fraction form
    562.64/843.98 = 151.81/x
  3. Step 3: Cross multiply
    562.64x = 843.98 × 151.81
  4. Step 4: Simplify right side
    562.64x = 128,121.73
  5. Step 5: Solve for x
    x = 128,121.73/562.64
  6. Step 6: Final answer
    x = 227.72

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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.