Home / 221,899.20-332,630.10-109,487.40

Finding the Fourth Proportional to 221,899.20, 332,630.10 and 109,487.40

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Solution

The fourth proportional to 221,899.20, 332,630.10 and 109,487.40 is: 164,123.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,899.20 : 332,630.10 = 109,487.40 : x
  2. Step 2: Convert to fraction form
    221,899.20/332,630.10 = 109,487.40/x
  3. Step 3: Cross multiply
    221,899.20x = 332,630.10 × 109,487.40
  4. Step 4: Simplify right side
    221,899.20x = 36,418,804,810.74
  5. Step 5: Solve for x
    x = 36,418,804,810.74/221,899.20
  6. Step 6: Final answer
    x = 164,123.19

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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.