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Finding the Fourth Proportional to 220,408.64, 330,615.72 and 62,636.88

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Solution

The fourth proportional to 220,408.64, 330,615.72 and 62,636.88 is: 93,956.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,408.64 : 330,615.72 = 62,636.88 : x
  2. Step 2: Convert to fraction form
    220,408.64/330,615.72 = 62,636.88/x
  3. Step 3: Cross multiply
    220,408.64x = 330,615.72 × 62,636.88
  4. Step 4: Simplify right side
    220,408.64x = 20,708,737,179.75
  5. Step 5: Solve for x
    x = 20,708,737,179.75/220,408.64
  6. Step 6: Final answer
    x = 93,956.10

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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.