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Finding the Fourth Proportional to 475.70, 657.32 and 371.05

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Solution

The fourth proportional to 475.70, 657.32 and 371.05 is: 512.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    475.70 : 657.32 = 371.05 : x
  2. Step 2: Convert to fraction form
    475.70/657.32 = 371.05/x
  3. Step 3: Cross multiply
    475.70x = 657.32 × 371.05
  4. Step 4: Simplify right side
    475.70x = 243,895.09
  5. Step 5: Solve for x
    x = 243,895.09/475.70
  6. Step 6: Final answer
    x = 512.71

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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.