Home / 260,929.88-391,271.45-101,080.68

Finding the Fourth Proportional to 260,929.88, 391,271.45 and 101,080.68

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Solution

The fourth proportional to 260,929.88, 391,271.45 and 101,080.68 is: 151,573.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,929.88 : 391,271.45 = 101,080.68 : x
  2. Step 2: Convert to fraction form
    260,929.88/391,271.45 = 101,080.68/x
  3. Step 3: Cross multiply
    260,929.88x = 391,271.45 × 101,080.68
  4. Step 4: Simplify right side
    260,929.88x = 39,549,981,768.83
  5. Step 5: Solve for x
    x = 39,549,981,768.83/260,929.88
  6. Step 6: Final answer
    x = 151,573.22

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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.