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Finding the Fourth Proportional to 247.58, 372.67 and 225.71

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Solution

The fourth proportional to 247.58, 372.67 and 225.71 is: 339.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.58 : 372.67 = 225.71 : x
  2. Step 2: Convert to fraction form
    247.58/372.67 = 225.71/x
  3. Step 3: Cross multiply
    247.58x = 372.67 × 225.71
  4. Step 4: Simplify right side
    247.58x = 84,115.35
  5. Step 5: Solve for x
    x = 84,115.35/247.58
  6. Step 6: Final answer
    x = 339.75

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.