Home / 408,193.74-612,346.04-141,919.80

Finding the Fourth Proportional to 408,193.74, 612,346.04 and 141,919.80

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Solution

The fourth proportional to 408,193.74, 612,346.04 and 141,919.80 is: 212,898.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,193.74 : 612,346.04 = 141,919.80 : x
  2. Step 2: Convert to fraction form
    408,193.74/612,346.04 = 141,919.80/x
  3. Step 3: Cross multiply
    408,193.74x = 612,346.04 × 141,919.80
  4. Step 4: Simplify right side
    408,193.74x = 86,904,026,817.99
  5. Step 5: Solve for x
    x = 86,904,026,817.99/408,193.74
  6. Step 6: Final answer
    x = 212,898.97

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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.