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Finding the Fourth Proportional to 377.78, 566.22 and 247.88

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Solution

The fourth proportional to 377.78, 566.22 and 247.88 is: 371.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.78 : 566.22 = 247.88 : x
  2. Step 2: Convert to fraction form
    377.78/566.22 = 247.88/x
  3. Step 3: Cross multiply
    377.78x = 566.22 × 247.88
  4. Step 4: Simplify right side
    377.78x = 140,354.61
  5. Step 5: Solve for x
    x = 140,354.61/377.78
  6. Step 6: Final answer
    x = 371.52

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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.