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Finding the Fourth Proportional to 155.60, 232.42 and 151.28

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Solution

The fourth proportional to 155.60, 232.42 and 151.28 is: 225.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.60 : 232.42 = 151.28 : x
  2. Step 2: Convert to fraction form
    155.60/232.42 = 151.28/x
  3. Step 3: Cross multiply
    155.60x = 232.42 × 151.28
  4. Step 4: Simplify right side
    155.60x = 35,160.50
  5. Step 5: Solve for x
    x = 35,160.50/155.60
  6. Step 6: Final answer
    x = 225.97

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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.