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Finding the Fourth Proportional to 546.95, 754.79 and 298.28

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Solution

The fourth proportional to 546.95, 754.79 and 298.28 is: 411.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.95 : 754.79 = 298.28 : x
  2. Step 2: Convert to fraction form
    546.95/754.79 = 298.28/x
  3. Step 3: Cross multiply
    546.95x = 754.79 × 298.28
  4. Step 4: Simplify right side
    546.95x = 225,136.59
  5. Step 5: Solve for x
    x = 225,136.59/546.95
  6. Step 6: Final answer
    x = 411.62

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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.