Home / 260,162.97-390,311.61-80,244.33

Finding the Fourth Proportional to 260,162.97, 390,311.61 and 80,244.33

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Solution

The fourth proportional to 260,162.97, 390,311.61 and 80,244.33 is: 120,387.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,162.97 : 390,311.61 = 80,244.33 : x
  2. Step 2: Convert to fraction form
    260,162.97/390,311.61 = 80,244.33/x
  3. Step 3: Cross multiply
    260,162.97x = 390,311.61 × 80,244.33
  4. Step 4: Simplify right side
    260,162.97x = 31,320,291,282.89
  5. Step 5: Solve for x
    x = 31,320,291,282.89/260,162.97
  6. Step 6: Final answer
    x = 120,387.20

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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.