Home / 288,983.97-398,791.89-159,922.40

Finding the Fourth Proportional to 288,983.97, 398,791.89 and 159,922.40

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Solution

The fourth proportional to 288,983.97, 398,791.89 and 159,922.40 is: 220,689.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,983.97 : 398,791.89 = 159,922.40 : x
  2. Step 2: Convert to fraction form
    288,983.97/398,791.89 = 159,922.40/x
  3. Step 3: Cross multiply
    288,983.97x = 398,791.89 × 159,922.40
  4. Step 4: Simplify right side
    288,983.97x = 63,775,754,155.38
  5. Step 5: Solve for x
    x = 63,775,754,155.38/288,983.97
  6. Step 6: Final answer
    x = 220,689.59

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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.