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Finding the Fourth Proportional to 159.14, 220.17 and 151.94

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Solution

The fourth proportional to 159.14, 220.17 and 151.94 is: 210.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    159.14 : 220.17 = 151.94 : x
  2. Step 2: Convert to fraction form
    159.14/220.17 = 151.94/x
  3. Step 3: Cross multiply
    159.14x = 220.17 × 151.94
  4. Step 4: Simplify right side
    159.14x = 33,452.63
  5. Step 5: Solve for x
    x = 33,452.63/159.14
  6. Step 6: Final answer
    x = 210.21

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.