Home / 268,981.25-402,348.20-189,013.59

Finding the Fourth Proportional to 268,981.25, 402,348.20 and 189,013.59

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Solution

The fourth proportional to 268,981.25, 402,348.20 and 189,013.59 is: 282,730.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,981.25 : 402,348.20 = 189,013.59 : x
  2. Step 2: Convert to fraction form
    268,981.25/402,348.20 = 189,013.59/x
  3. Step 3: Cross multiply
    268,981.25x = 402,348.20 × 189,013.59
  4. Step 4: Simplify right side
    268,981.25x = 76,049,276,766.97
  5. Step 5: Solve for x
    x = 76,049,276,766.97/268,981.25
  6. Step 6: Final answer
    x = 282,730.78

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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.