Home / 221,045.95-331,633.61-71,283.23

Finding the Fourth Proportional to 221,045.95, 331,633.61 and 71,283.23

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Solution

The fourth proportional to 221,045.95, 331,633.61 and 71,283.23 is: 106,945.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,045.95 : 331,633.61 = 71,283.23 : x
  2. Step 2: Convert to fraction form
    221,045.95/331,633.61 = 71,283.23/x
  3. Step 3: Cross multiply
    221,045.95x = 331,633.61 × 71,283.23
  4. Step 4: Simplify right side
    221,045.95x = 23,639,914,540.94
  5. Step 5: Solve for x
    x = 23,639,914,540.94/221,045.95
  6. Step 6: Final answer
    x = 106,945.71

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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.