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Finding the Fourth Proportional to 221,559.70, 332,339.55 and 132,913.30

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Solution

The fourth proportional to 221,559.70, 332,339.55 and 132,913.30 is: 199,369.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,559.70 : 332,339.55 = 132,913.30 : x
  2. Step 2: Convert to fraction form
    221,559.70/332,339.55 = 132,913.30/x
  3. Step 3: Cross multiply
    221,559.70x = 332,339.55 × 132,913.30
  4. Step 4: Simplify right side
    221,559.70x = 44,172,346,311.02
  5. Step 5: Solve for x
    x = 44,172,346,311.02/221,559.70
  6. Step 6: Final answer
    x = 199,369.95

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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.