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Finding the Fourth Proportional to 372.10, 515.67 and 366.88

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Solution

The fourth proportional to 372.10, 515.67 and 366.88 is: 508.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.10 : 515.67 = 366.88 : x
  2. Step 2: Convert to fraction form
    372.10/515.67 = 366.88/x
  3. Step 3: Cross multiply
    372.10x = 515.67 × 366.88
  4. Step 4: Simplify right side
    372.10x = 189,189.01
  5. Step 5: Solve for x
    x = 189,189.01/372.10
  6. Step 6: Final answer
    x = 508.44

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.