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Finding the Fourth Proportional to 220,103.70, 330,155.55 and 113,487.45

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Solution

The fourth proportional to 220,103.70, 330,155.55 and 113,487.45 is: 170,231.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,103.70 : 330,155.55 = 113,487.45 : x
  2. Step 2: Convert to fraction form
    220,103.70/330,155.55 = 113,487.45/x
  3. Step 3: Cross multiply
    220,103.70x = 330,155.55 × 113,487.45
  4. Step 4: Simplify right side
    220,103.70x = 37,468,511,472.85
  5. Step 5: Solve for x
    x = 37,468,511,472.85/220,103.70
  6. Step 6: Final answer
    x = 170,231.18

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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.