Home / 259,512.70-389,281.20-82,033.60

Finding the Fourth Proportional to 259,512.70, 389,281.20 and 82,033.60

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Solution

The fourth proportional to 259,512.70, 389,281.20 and 82,033.60 is: 123,054.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,512.70 : 389,281.20 = 82,033.60 : x
  2. Step 2: Convert to fraction form
    259,512.70/389,281.20 = 82,033.60/x
  3. Step 3: Cross multiply
    259,512.70x = 389,281.20 × 82,033.60
  4. Step 4: Simplify right side
    259,512.70x = 31,934,138,248.32
  5. Step 5: Solve for x
    x = 31,934,138,248.32/259,512.70
  6. Step 6: Final answer
    x = 123,054.24

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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.