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Finding the Fourth Proportional to 372.66, 514.34 and 356.27

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Solution

The fourth proportional to 372.66, 514.34 and 356.27 is: 491.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.66 : 514.34 = 356.27 : x
  2. Step 2: Convert to fraction form
    372.66/514.34 = 356.27/x
  3. Step 3: Cross multiply
    372.66x = 514.34 × 356.27
  4. Step 4: Simplify right side
    372.66x = 183,239.56
  5. Step 5: Solve for x
    x = 183,239.56/372.66
  6. Step 6: Final answer
    x = 491.71

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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.