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Finding the Fourth Proportional to 152.73, 229.32 and 91.98

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Solution

The fourth proportional to 152.73, 229.32 and 91.98 is: 138.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    152.73 : 229.32 = 91.98 : x
  2. Step 2: Convert to fraction form
    152.73/229.32 = 91.98/x
  3. Step 3: Cross multiply
    152.73x = 229.32 × 91.98
  4. Step 4: Simplify right side
    152.73x = 21,092.85
  5. Step 5: Solve for x
    x = 21,092.85/152.73
  6. Step 6: Final answer
    x = 138.11

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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.