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Finding the Fourth Proportional to 151.64, 227.25 and 60.20

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Solution

The fourth proportional to 151.64, 227.25 and 60.20 is: 90.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.64 : 227.25 = 60.20 : x
  2. Step 2: Convert to fraction form
    151.64/227.25 = 60.20/x
  3. Step 3: Cross multiply
    151.64x = 227.25 × 60.20
  4. Step 4: Simplify right side
    151.64x = 13,679.31
  5. Step 5: Solve for x
    x = 13,679.31/151.64
  6. Step 6: Final answer
    x = 90.21

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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.