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Finding the Fourth Proportional to 220,279.96, 330,421.02 and 54,067.96

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Solution

The fourth proportional to 220,279.96, 330,421.02 and 54,067.96 is: 81,102.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,279.96 : 330,421.02 = 54,067.96 : x
  2. Step 2: Convert to fraction form
    220,279.96/330,421.02 = 54,067.96/x
  3. Step 3: Cross multiply
    220,279.96x = 330,421.02 × 54,067.96
  4. Step 4: Simplify right side
    220,279.96x = 17,865,190,492.52
  5. Step 5: Solve for x
    x = 17,865,190,492.52/220,279.96
  6. Step 6: Final answer
    x = 81,102.21

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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.