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Finding the Fourth Proportional to 558.80, 771.22 and 337.88

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Solution

The fourth proportional to 558.80, 771.22 and 337.88 is: 466.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.80 : 771.22 = 337.88 : x
  2. Step 2: Convert to fraction form
    558.80/771.22 = 337.88/x
  3. Step 3: Cross multiply
    558.80x = 771.22 × 337.88
  4. Step 4: Simplify right side
    558.80x = 260,579.81
  5. Step 5: Solve for x
    x = 260,579.81/558.80
  6. Step 6: Final answer
    x = 466.32

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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.