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Finding the Fourth Proportional to 546.17, 753.79 and 349.75

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Solution

The fourth proportional to 546.17, 753.79 and 349.75 is: 482.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.17 : 753.79 = 349.75 : x
  2. Step 2: Convert to fraction form
    546.17/753.79 = 349.75/x
  3. Step 3: Cross multiply
    546.17x = 753.79 × 349.75
  4. Step 4: Simplify right side
    546.17x = 263,634.28
  5. Step 5: Solve for x
    x = 263,634.28/546.17
  6. Step 6: Final answer
    x = 482.70

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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.