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Finding the Fourth Proportional to 147.16, 220.77 and 101.53

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Solution

The fourth proportional to 147.16, 220.77 and 101.53 is: 152.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    147.16 : 220.77 = 101.53 : x
  2. Step 2: Convert to fraction form
    147.16/220.77 = 101.53/x
  3. Step 3: Cross multiply
    147.16x = 220.77 × 101.53
  4. Step 4: Simplify right side
    147.16x = 22,414.78
  5. Step 5: Solve for x
    x = 22,414.78/147.16
  6. Step 6: Final answer
    x = 152.32

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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.