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Finding the Fourth Proportional to 558.87, 771.12 and 337.92

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Solution

The fourth proportional to 558.87, 771.12 and 337.92 is: 466.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.87 : 771.12 = 337.92 : x
  2. Step 2: Convert to fraction form
    558.87/771.12 = 337.92/x
  3. Step 3: Cross multiply
    558.87x = 771.12 × 337.92
  4. Step 4: Simplify right side
    558.87x = 260,576.87
  5. Step 5: Solve for x
    x = 260,576.87/558.87
  6. Step 6: Final answer
    x = 466.26

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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.