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Finding the Fourth Proportional to 377.62, 565.42 and 255.32

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Solution

The fourth proportional to 377.62, 565.42 and 255.32 is: 382.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.62 : 565.42 = 255.32 : x
  2. Step 2: Convert to fraction form
    377.62/565.42 = 255.32/x
  3. Step 3: Cross multiply
    377.62x = 565.42 × 255.32
  4. Step 4: Simplify right side
    377.62x = 144,363.03
  5. Step 5: Solve for x
    x = 144,363.03/377.62
  6. Step 6: Final answer
    x = 382.30

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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.