Home / 268,891.20-402,753.60-144,086.40

Finding the Fourth Proportional to 268,891.20, 402,753.60 and 144,086.40

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Solution

The fourth proportional to 268,891.20, 402,753.60 and 144,086.40 is: 215,817.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,891.20 : 402,753.60 = 144,086.40 : x
  2. Step 2: Convert to fraction form
    268,891.20/402,753.60 = 144,086.40/x
  3. Step 3: Cross multiply
    268,891.20x = 402,753.60 × 144,086.40
  4. Step 4: Simplify right side
    268,891.20x = 58,031,316,311.04
  5. Step 5: Solve for x
    x = 58,031,316,311.04/268,891.20
  6. Step 6: Final answer
    x = 215,817.09

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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.