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Finding the Fourth Proportional to 153.69, 232.22 and 152.21

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Solution

The fourth proportional to 153.69, 232.22 and 152.21 is: 229.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    153.69 : 232.22 = 152.21 : x
  2. Step 2: Convert to fraction form
    153.69/232.22 = 152.21/x
  3. Step 3: Cross multiply
    153.69x = 232.22 × 152.21
  4. Step 4: Simplify right side
    153.69x = 35,344.28
  5. Step 5: Solve for x
    x = 35,344.28/153.69
  6. Step 6: Final answer
    x = 229.97

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.