Home / 288,449.13-398,051.41-159,385.55

Finding the Fourth Proportional to 288,449.13, 398,051.41 and 159,385.55

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Solution

The fourth proportional to 288,449.13, 398,051.41 and 159,385.55 is: 219,947.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,449.13 : 398,051.41 = 159,385.55 : x
  2. Step 2: Convert to fraction form
    288,449.13/398,051.41 = 159,385.55/x
  3. Step 3: Cross multiply
    288,449.13x = 398,051.41 × 159,385.55
  4. Step 4: Simplify right side
    288,449.13x = 63,443,641,517.53
  5. Step 5: Solve for x
    x = 63,443,641,517.53/288,449.13
  6. Step 6: Final answer
    x = 219,947.42

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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.