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Finding the Fourth Proportional to 316.43, 472.17 and 250.69

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Solution

The fourth proportional to 316.43, 472.17 and 250.69 is: 374.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    316.43 : 472.17 = 250.69 : x
  2. Step 2: Convert to fraction form
    316.43/472.17 = 250.69/x
  3. Step 3: Cross multiply
    316.43x = 472.17 × 250.69
  4. Step 4: Simplify right side
    316.43x = 118,365.94
  5. Step 5: Solve for x
    x = 118,365.94/316.43
  6. Step 6: Final answer
    x = 374.07

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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.