Home / 259,947.20-389,264.70-170,717.60

Finding the Fourth Proportional to 259,947.20, 389,264.70 and 170,717.60

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Solution

The fourth proportional to 259,947.20, 389,264.70 and 170,717.60 is: 255,645.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,947.20 : 389,264.70 = 170,717.60 : x
  2. Step 2: Convert to fraction form
    259,947.20/389,264.70 = 170,717.60/x
  3. Step 3: Cross multiply
    259,947.20x = 389,264.70 × 170,717.60
  4. Step 4: Simplify right side
    259,947.20x = 66,454,335,348.72
  5. Step 5: Solve for x
    x = 66,454,335,348.72/259,947.20
  6. Step 6: Final answer
    x = 255,645.51

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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.