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Finding the Fourth Proportional to 153.59, 211.46 and 116.73

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Solution

The fourth proportional to 153.59, 211.46 and 116.73 is: 160.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    153.59 : 211.46 = 116.73 : x
  2. Step 2: Convert to fraction form
    153.59/211.46 = 116.73/x
  3. Step 3: Cross multiply
    153.59x = 211.46 × 116.73
  4. Step 4: Simplify right side
    153.59x = 24,683.14
  5. Step 5: Solve for x
    x = 24,683.14/153.59
  6. Step 6: Final answer
    x = 160.71

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Why These Related Problems?

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