Home / 268,337.20-402,519.57-68,659.30

Finding the Fourth Proportional to 268,337.20, 402,519.57 and 68,659.30

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Solution

The fourth proportional to 268,337.20, 402,519.57 and 68,659.30 is: 102,992.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,337.20 : 402,519.57 = 68,659.30 : x
  2. Step 2: Convert to fraction form
    268,337.20/402,519.57 = 68,659.30/x
  3. Step 3: Cross multiply
    268,337.20x = 402,519.57 × 68,659.30
  4. Step 4: Simplify right side
    268,337.20x = 27,636,711,912.50
  5. Step 5: Solve for x
    x = 27,636,711,912.50/268,337.20
  6. Step 6: Final answer
    x = 102,992.47

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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.