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Finding the Fourth Proportional to 250.65, 374.18 and 231.17

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Solution

The fourth proportional to 250.65, 374.18 and 231.17 is: 345.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.65 : 374.18 = 231.17 : x
  2. Step 2: Convert to fraction form
    250.65/374.18 = 231.17/x
  3. Step 3: Cross multiply
    250.65x = 374.18 × 231.17
  4. Step 4: Simplify right side
    250.65x = 86,500.68
  5. Step 5: Solve for x
    x = 86,500.68/250.65
  6. Step 6: Final answer
    x = 345.10

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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.