Home / 288,743.20-398,454.18-159,673.29

Finding the Fourth Proportional to 288,743.20, 398,454.18 and 159,673.29

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Solution

The fourth proportional to 288,743.20, 398,454.18 and 159,673.29 is: 220,342.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,743.20 : 398,454.18 = 159,673.29 : x
  2. Step 2: Convert to fraction form
    288,743.20/398,454.18 = 159,673.29/x
  3. Step 3: Cross multiply
    288,743.20x = 398,454.18 × 159,673.29
  4. Step 4: Simplify right side
    288,743.20x = 63,622,489,435.67
  5. Step 5: Solve for x
    x = 63,622,489,435.67/288,743.20
  6. Step 6: Final answer
    x = 220,342.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.