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Finding the Fourth Proportional to 395.16, 591.83 and 372.38

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Solution

The fourth proportional to 395.16, 591.83 and 372.38 is: 557.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.16 : 591.83 = 372.38 : x
  2. Step 2: Convert to fraction form
    395.16/591.83 = 372.38/x
  3. Step 3: Cross multiply
    395.16x = 591.83 × 372.38
  4. Step 4: Simplify right side
    395.16x = 220,380.83
  5. Step 5: Solve for x
    x = 220,380.83/395.16
  6. Step 6: Final answer
    x = 557.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.