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Finding the Fourth Proportional to 372.60, 516.51 and 365.85

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Solution

The fourth proportional to 372.60, 516.51 and 365.85 is: 507.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.60 : 516.51 = 365.85 : x
  2. Step 2: Convert to fraction form
    372.60/516.51 = 365.85/x
  3. Step 3: Cross multiply
    372.60x = 516.51 × 365.85
  4. Step 4: Simplify right side
    372.60x = 188,965.18
  5. Step 5: Solve for x
    x = 188,965.18/372.60
  6. Step 6: Final answer
    x = 507.15

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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.