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Finding the Fourth Proportional to 155.82, 234.87 and 152.18

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Solution

The fourth proportional to 155.82, 234.87 and 152.18 is: 229.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.82 : 234.87 = 152.18 : x
  2. Step 2: Convert to fraction form
    155.82/234.87 = 152.18/x
  3. Step 3: Cross multiply
    155.82x = 234.87 × 152.18
  4. Step 4: Simplify right side
    155.82x = 35,742.94
  5. Step 5: Solve for x
    x = 35,742.94/155.82
  6. Step 6: Final answer
    x = 229.38

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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.