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Finding the Fourth Proportional to 221,406.70, 332,110.05 and 63,625.90

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Solution

The fourth proportional to 221,406.70, 332,110.05 and 63,625.90 is: 95,438.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,406.70 : 332,110.05 = 63,625.90 : x
  2. Step 2: Convert to fraction form
    221,406.70/332,110.05 = 63,625.90/x
  3. Step 3: Cross multiply
    221,406.70x = 332,110.05 × 63,625.90
  4. Step 4: Simplify right side
    221,406.70x = 21,130,800,830.30
  5. Step 5: Solve for x
    x = 21,130,800,830.30/221,406.70
  6. Step 6: Final answer
    x = 95,438.85

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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.