Home / 268,151.20-402,314.28-127,891.60

Finding the Fourth Proportional to 268,151.20, 402,314.28 and 127,891.60

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Solution

The fourth proportional to 268,151.20, 402,314.28 and 127,891.60 is: 191,879.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,151.20 : 402,314.28 = 127,891.60 : x
  2. Step 2: Convert to fraction form
    268,151.20/402,314.28 = 127,891.60/x
  3. Step 3: Cross multiply
    268,151.20x = 402,314.28 × 127,891.60
  4. Step 4: Simplify right side
    268,151.20x = 51,452,616,972.05
  5. Step 5: Solve for x
    x = 51,452,616,972.05/268,151.20
  6. Step 6: Final answer
    x = 191,879.12

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1.5x scale

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.