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Finding the Fourth Proportional to 248,396.58, 372,480.66 and 79,885.80

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Solution

The fourth proportional to 248,396.58, 372,480.66 and 79,885.80 is: 119,791.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,396.58 : 372,480.66 = 79,885.80 : x
  2. Step 2: Convert to fraction form
    248,396.58/372,480.66 = 79,885.80/x
  3. Step 3: Cross multiply
    248,396.58x = 372,480.66 × 79,885.80
  4. Step 4: Simplify right side
    248,396.58x = 29,755,915,508.63
  5. Step 5: Solve for x
    x = 29,755,915,508.63/248,396.58
  6. Step 6: Final answer
    x = 119,791.97

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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.