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Finding the Fourth Proportional to 230.17, 345.01 and 147.65

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Solution

The fourth proportional to 230.17, 345.01 and 147.65 is: 221.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    230.17 : 345.01 = 147.65 : x
  2. Step 2: Convert to fraction form
    230.17/345.01 = 147.65/x
  3. Step 3: Cross multiply
    230.17x = 345.01 × 147.65
  4. Step 4: Simplify right side
    230.17x = 50,940.73
  5. Step 5: Solve for x
    x = 50,940.73/230.17
  6. Step 6: Final answer
    x = 221.32

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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.