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Finding the Fourth Proportional to 546.38, 754.08 and 347.30

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Solution

The fourth proportional to 546.38, 754.08 and 347.30 is: 479.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.38 : 754.08 = 347.30 : x
  2. Step 2: Convert to fraction form
    546.38/754.08 = 347.30/x
  3. Step 3: Cross multiply
    546.38x = 754.08 × 347.30
  4. Step 4: Simplify right side
    546.38x = 261,891.98
  5. Step 5: Solve for x
    x = 261,891.98/546.38
  6. Step 6: Final answer
    x = 479.32

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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.