Home / 260,909.56-391,358.18-83,418.10

Finding the Fourth Proportional to 260,909.56, 391,358.18 and 83,418.10

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Solution

The fourth proportional to 260,909.56, 391,358.18 and 83,418.10 is: 125,125.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,909.56 : 391,358.18 = 83,418.10 : x
  2. Step 2: Convert to fraction form
    260,909.56/391,358.18 = 83,418.10/x
  3. Step 3: Cross multiply
    260,909.56x = 391,358.18 × 83,418.10
  4. Step 4: Simplify right side
    260,909.56x = 32,646,357,226.60
  5. Step 5: Solve for x
    x = 32,646,357,226.60/260,909.56
  6. Step 6: Final answer
    x = 125,125.19

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1.5x scale

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.