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Finding the Fourth Proportional to 377.61, 565.77 and 247.55

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Solution

The fourth proportional to 377.61, 565.77 and 247.55 is: 370.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.61 : 565.77 = 247.55 : x
  2. Step 2: Convert to fraction form
    377.61/565.77 = 247.55/x
  3. Step 3: Cross multiply
    377.61x = 565.77 × 247.55
  4. Step 4: Simplify right side
    377.61x = 140,053.53
  5. Step 5: Solve for x
    x = 140,053.53/377.61
  6. Step 6: Final answer
    x = 370.89

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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.