Home / 260,733.78-391,107.42-83,240.64

Finding the Fourth Proportional to 260,733.78, 391,107.42 and 83,240.64

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Solution

The fourth proportional to 260,733.78, 391,107.42 and 83,240.64 is: 124,863.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,733.78 : 391,107.42 = 83,240.64 : x
  2. Step 2: Convert to fraction form
    260,733.78/391,107.42 = 83,240.64/x
  3. Step 3: Cross multiply
    260,733.78x = 391,107.42 × 83,240.64
  4. Step 4: Simplify right side
    260,733.78x = 32,556,031,949.55
  5. Step 5: Solve for x
    x = 32,556,031,949.55/260,733.78
  6. Step 6: Final answer
    x = 124,863.11

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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.