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Finding the Fourth Proportional to 546.87, 754.69 and 310.82

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Solution

The fourth proportional to 546.87, 754.69 and 310.82 is: 428.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.87 : 754.69 = 310.82 : x
  2. Step 2: Convert to fraction form
    546.87/754.69 = 310.82/x
  3. Step 3: Cross multiply
    546.87x = 754.69 × 310.82
  4. Step 4: Simplify right side
    546.87x = 234,572.75
  5. Step 5: Solve for x
    x = 234,572.75/546.87
  6. Step 6: Final answer
    x = 428.94

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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.