Home / 259,873.60-389,777.55-82,382.35

Finding the Fourth Proportional to 259,873.60, 389,777.55 and 82,382.35

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Solution

The fourth proportional to 259,873.60, 389,777.55 and 82,382.35 is: 123,563.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,873.60 : 389,777.55 = 82,382.35 : x
  2. Step 2: Convert to fraction form
    259,873.60/389,777.55 = 82,382.35/x
  3. Step 3: Cross multiply
    259,873.60x = 389,777.55 × 82,382.35
  4. Step 4: Simplify right side
    259,873.60x = 32,110,790,546.24
  5. Step 5: Solve for x
    x = 32,110,790,546.24/259,873.60
  6. Step 6: Final answer
    x = 123,563.11

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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.