Home / 261,298.90-391,947.49-71,759.44

Finding the Fourth Proportional to 261,298.90, 391,947.49 and 71,759.44

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Solution

The fourth proportional to 261,298.90, 391,947.49 and 71,759.44 is: 107,638.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,298.90 : 391,947.49 = 71,759.44 : x
  2. Step 2: Convert to fraction form
    261,298.90/391,947.49 = 71,759.44/x
  3. Step 3: Cross multiply
    261,298.90x = 391,947.49 × 71,759.44
  4. Step 4: Simplify right side
    261,298.90x = 28,125,932,391.81
  5. Step 5: Solve for x
    x = 28,125,932,391.81/261,298.90
  6. Step 6: Final answer
    x = 107,638.92

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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.