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Finding the Fourth Proportional to 558.28, 770.80 and 337.61

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Solution

The fourth proportional to 558.28, 770.80 and 337.61 is: 466.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.28 : 770.80 = 337.61 : x
  2. Step 2: Convert to fraction form
    558.28/770.80 = 337.61/x
  3. Step 3: Cross multiply
    558.28x = 770.80 × 337.61
  4. Step 4: Simplify right side
    558.28x = 260,229.34
  5. Step 5: Solve for x
    x = 260,229.34/558.28
  6. Step 6: Final answer
    x = 466.13

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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.