Home / 221,366.29-331,852.20-81,092.11

Finding the Fourth Proportional to 221,366.29, 331,852.20 and 81,092.11

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Solution

The fourth proportional to 221,366.29, 331,852.20 and 81,092.11 is: 121,565.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,366.29 : 331,852.20 = 81,092.11 : x
  2. Step 2: Convert to fraction form
    221,366.29/331,852.20 = 81,092.11/x
  3. Step 3: Cross multiply
    221,366.29x = 331,852.20 × 81,092.11
  4. Step 4: Simplify right side
    221,366.29x = 26,910,595,106.14
  5. Step 5: Solve for x
    x = 26,910,595,106.14/221,366.29
  6. Step 6: Final answer
    x = 121,565.91

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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.