Home / 439,315.20-658,972.80-106,891.20

Finding the Fourth Proportional to 439,315.20, 658,972.80 and 106,891.20

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Solution

The fourth proportional to 439,315.20, 658,972.80 and 106,891.20 is: 160,336.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,315.20 : 658,972.80 = 106,891.20 : x
  2. Step 2: Convert to fraction form
    439,315.20/658,972.80 = 106,891.20/x
  3. Step 3: Cross multiply
    439,315.20x = 658,972.80 × 106,891.20
  4. Step 4: Simplify right side
    439,315.20x = 70,438,393,359.36
  5. Step 5: Solve for x
    x = 70,438,393,359.36/439,315.20
  6. Step 6: Final answer
    x = 160,336.80

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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.