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Finding the Fourth Proportional to 155.53, 234.96 and 154.18

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Solution

The fourth proportional to 155.53, 234.96 and 154.18 is: 232.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.53 : 234.96 = 154.18 : x
  2. Step 2: Convert to fraction form
    155.53/234.96 = 154.18/x
  3. Step 3: Cross multiply
    155.53x = 234.96 × 154.18
  4. Step 4: Simplify right side
    155.53x = 36,226.13
  5. Step 5: Solve for x
    x = 36,226.13/155.53
  6. Step 6: Final answer
    x = 232.92

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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.