Home / 288,977.52-398,789.33-159,921.34

Finding the Fourth Proportional to 288,977.52, 398,789.33 and 159,921.34

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Solution

The fourth proportional to 288,977.52, 398,789.33 and 159,921.34 is: 220,691.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,977.52 : 398,789.33 = 159,921.34 : x
  2. Step 2: Convert to fraction form
    288,977.52/398,789.33 = 159,921.34/x
  3. Step 3: Cross multiply
    288,977.52x = 398,789.33 × 159,921.34
  4. Step 4: Simplify right side
    288,977.52x = 63,774,922,234.72
  5. Step 5: Solve for x
    x = 63,774,922,234.72/288,977.52
  6. Step 6: Final answer
    x = 220,691.64

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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.