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Finding the Fourth Proportional to 153.30, 229.66 and 88.22

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Solution

The fourth proportional to 153.30, 229.66 and 88.22 is: 132.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    153.30 : 229.66 = 88.22 : x
  2. Step 2: Convert to fraction form
    153.30/229.66 = 88.22/x
  3. Step 3: Cross multiply
    153.30x = 229.66 × 88.22
  4. Step 4: Simplify right side
    153.30x = 20,260.61
  5. Step 5: Solve for x
    x = 20,260.61/153.30
  6. Step 6: Final answer
    x = 132.16

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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.