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Finding the Fourth Proportional to 379.30, 523.24 and 337.90

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Solution

The fourth proportional to 379.30, 523.24 and 337.90 is: 466.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    379.30 : 523.24 = 337.90 : x
  2. Step 2: Convert to fraction form
    379.30/523.24 = 337.90/x
  3. Step 3: Cross multiply
    379.30x = 523.24 × 337.90
  4. Step 4: Simplify right side
    379.30x = 176,802.80
  5. Step 5: Solve for x
    x = 176,802.80/379.30
  6. Step 6: Final answer
    x = 466.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.