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Finding the Fourth Proportional to 220,125.78, 330,142.50 and 62,311.86

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Solution

The fourth proportional to 220,125.78, 330,142.50 and 62,311.86 is: 93,454.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,125.78 : 330,142.50 = 62,311.86 : x
  2. Step 2: Convert to fraction form
    220,125.78/330,142.50 = 62,311.86/x
  3. Step 3: Cross multiply
    220,125.78x = 330,142.50 × 62,311.86
  4. Step 4: Simplify right side
    220,125.78x = 20,571,793,240.05
  5. Step 5: Solve for x
    x = 20,571,793,240.05/220,125.78
  6. Step 6: Final answer
    x = 93,454.72

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1.5x scale

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.