Home / 278,142.30-416,966.04-100,609.80

Finding the Fourth Proportional to 278,142.30, 416,966.04 and 100,609.80

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Solution

The fourth proportional to 278,142.30, 416,966.04 and 100,609.80 is: 150,825.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,142.30 : 416,966.04 = 100,609.80 : x
  2. Step 2: Convert to fraction form
    278,142.30/416,966.04 = 100,609.80/x
  3. Step 3: Cross multiply
    278,142.30x = 416,966.04 × 100,609.80
  4. Step 4: Simplify right side
    278,142.30x = 41,950,869,891.19
  5. Step 5: Solve for x
    x = 41,950,869,891.19/278,142.30
  6. Step 6: Final answer
    x = 150,825.21

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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.