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Finding the Fourth Proportional to 230.46, 345.50 and 158.22

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Solution

The fourth proportional to 230.46, 345.50 and 158.22 is: 237.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    230.46 : 345.50 = 158.22 : x
  2. Step 2: Convert to fraction form
    230.46/345.50 = 158.22/x
  3. Step 3: Cross multiply
    230.46x = 345.50 × 158.22
  4. Step 4: Simplify right side
    230.46x = 54,665.01
  5. Step 5: Solve for x
    x = 54,665.01/230.46
  6. Step 6: Final answer
    x = 237.20

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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.