Home / 268,336.20-402,518.07-68,658.30

Finding the Fourth Proportional to 268,336.20, 402,518.07 and 68,658.30

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Solution

The fourth proportional to 268,336.20, 402,518.07 and 68,658.30 is: 102,990.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,336.20 : 402,518.07 = 68,658.30 : x
  2. Step 2: Convert to fraction form
    268,336.20/402,518.07 = 68,658.30/x
  3. Step 3: Cross multiply
    268,336.20x = 402,518.07 × 68,658.30
  4. Step 4: Simplify right side
    268,336.20x = 27,636,206,405.48
  5. Step 5: Solve for x
    x = 27,636,206,405.48/268,336.20
  6. Step 6: Final answer
    x = 102,990.97

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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.