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Finding the Fourth Proportional to 159.12, 237.04 and 149.15

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Solution

The fourth proportional to 159.12, 237.04 and 149.15 is: 222.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    159.12 : 237.04 = 149.15 : x
  2. Step 2: Convert to fraction form
    159.12/237.04 = 149.15/x
  3. Step 3: Cross multiply
    159.12x = 237.04 × 149.15
  4. Step 4: Simplify right side
    159.12x = 35,354.74
  5. Step 5: Solve for x
    x = 35,354.74/159.12
  6. Step 6: Final answer
    x = 222.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.