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Finding the Fourth Proportional to 347.08, 517.52 and 308.92

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Solution

The fourth proportional to 347.08, 517.52 and 308.92 is: 460.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.08 : 517.52 = 308.92 : x
  2. Step 2: Convert to fraction form
    347.08/517.52 = 308.92/x
  3. Step 3: Cross multiply
    347.08x = 517.52 × 308.92
  4. Step 4: Simplify right side
    347.08x = 159,872.28
  5. Step 5: Solve for x
    x = 159,872.28/347.08
  6. Step 6: Final answer
    x = 460.62

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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.