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Finding the Fourth Proportional to 475.11, 656.24 and 343.89

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Solution

The fourth proportional to 475.11, 656.24 and 343.89 is: 474.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    475.11 : 656.24 = 343.89 : x
  2. Step 2: Convert to fraction form
    475.11/656.24 = 343.89/x
  3. Step 3: Cross multiply
    475.11x = 656.24 × 343.89
  4. Step 4: Simplify right side
    475.11x = 225,672.65
  5. Step 5: Solve for x
    x = 225,672.65/475.11
  6. Step 6: Final answer
    x = 474.99

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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.