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Finding the Fourth Proportional to 220,560.60, 330,976.98 and 102,209.88

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Solution

The fourth proportional to 220,560.60, 330,976.98 and 102,209.88 is: 153,377.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,560.60 : 330,976.98 = 102,209.88 : x
  2. Step 2: Convert to fraction form
    220,560.60/330,976.98 = 102,209.88/x
  3. Step 3: Cross multiply
    220,560.60x = 330,976.98 × 102,209.88
  4. Step 4: Simplify right side
    220,560.60x = 33,829,117,408.56
  5. Step 5: Solve for x
    x = 33,829,117,408.56/220,560.60
  6. Step 6: Final answer
    x = 153,377.88

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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.