Home / 260,766.83-391,087.02-71,228.08

Finding the Fourth Proportional to 260,766.83, 391,087.02 and 71,228.08

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Solution

The fourth proportional to 260,766.83, 391,087.02 and 71,228.08 is: 106,824.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,766.83 : 391,087.02 = 71,228.08 : x
  2. Step 2: Convert to fraction form
    260,766.83/391,087.02 = 71,228.08/x
  3. Step 3: Cross multiply
    260,766.83x = 391,087.02 × 71,228.08
  4. Step 4: Simplify right side
    260,766.83x = 27,856,377,547.52
  5. Step 5: Solve for x
    x = 27,856,377,547.52/260,766.83
  6. Step 6: Final answer
    x = 106,824.85

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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.