Home / 260,725.15-391,233.05-140,779.56

Finding the Fourth Proportional to 260,725.15, 391,233.05 and 140,779.56

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Solution

The fourth proportional to 260,725.15, 391,233.05 and 140,779.56 is: 211,247.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,725.15 : 391,233.05 = 140,779.56 : x
  2. Step 2: Convert to fraction form
    260,725.15/391,233.05 = 140,779.56/x
  3. Step 3: Cross multiply
    260,725.15x = 391,233.05 × 140,779.56
  4. Step 4: Simplify right side
    260,725.15x = 55,077,615,932.56
  5. Step 5: Solve for x
    x = 55,077,615,932.56/260,725.15
  6. Step 6: Final answer
    x = 211,247.81

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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.