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Finding the Fourth Proportional to 221,454.88, 331,682.88 and 102,876.70

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Solution

The fourth proportional to 221,454.88, 331,682.88 and 102,876.70 is: 154,083.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,454.88 : 331,682.88 = 102,876.70 : x
  2. Step 2: Convert to fraction form
    221,454.88/331,682.88 = 102,876.70/x
  3. Step 3: Cross multiply
    221,454.88x = 331,682.88 × 102,876.70
  4. Step 4: Simplify right side
    221,454.88x = 34,122,440,140.90
  5. Step 5: Solve for x
    x = 34,122,440,140.90/221,454.88
  6. Step 6: Final answer
    x = 154,083.04

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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.