Home / 278,372.20-417,554.66-68,011.96

Finding the Fourth Proportional to 278,372.20, 417,554.66 and 68,011.96

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Solution

The fourth proportional to 278,372.20, 417,554.66 and 68,011.96 is: 102,017.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,372.20 : 417,554.66 = 68,011.96 : x
  2. Step 2: Convert to fraction form
    278,372.20/417,554.66 = 68,011.96/x
  3. Step 3: Cross multiply
    278,372.20x = 417,554.66 × 68,011.96
  4. Step 4: Simplify right side
    278,372.20x = 28,398,710,833.73
  5. Step 5: Solve for x
    x = 28,398,710,833.73/278,372.20
  6. Step 6: Final answer
    x = 102,017.05

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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.