Home / 259,672.20-389,435.40-82,233.60

Finding the Fourth Proportional to 259,672.20, 389,435.40 and 82,233.60

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Solution

The fourth proportional to 259,672.20, 389,435.40 and 82,233.60 is: 123,327.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,672.20 : 389,435.40 = 82,233.60 : x
  2. Step 2: Convert to fraction form
    259,672.20/389,435.40 = 82,233.60/x
  3. Step 3: Cross multiply
    259,672.20x = 389,435.40 × 82,233.60
  4. Step 4: Simplify right side
    259,672.20x = 32,024,674,909.44
  5. Step 5: Solve for x
    x = 32,024,674,909.44/259,672.20
  6. Step 6: Final answer
    x = 123,327.31

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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.