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Finding the Fourth Proportional to 376.87, 520.15 and 237.11

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Solution

The fourth proportional to 376.87, 520.15 and 237.11 is: 327.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.87 : 520.15 = 237.11 : x
  2. Step 2: Convert to fraction form
    376.87/520.15 = 237.11/x
  3. Step 3: Cross multiply
    376.87x = 520.15 × 237.11
  4. Step 4: Simplify right side
    376.87x = 123,332.77
  5. Step 5: Solve for x
    x = 123,332.77/376.87
  6. Step 6: Final answer
    x = 327.26

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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.