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Finding the Fourth Proportional to 558.66, 837.20 and 475.96

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Solution

The fourth proportional to 558.66, 837.20 and 475.96 is: 713.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.66 : 837.20 = 475.96 : x
  2. Step 2: Convert to fraction form
    558.66/837.20 = 475.96/x
  3. Step 3: Cross multiply
    558.66x = 837.20 × 475.96
  4. Step 4: Simplify right side
    558.66x = 398,473.71
  5. Step 5: Solve for x
    x = 398,473.71/558.66
  6. Step 6: Final answer
    x = 713.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.