Home / 454,949.40-682,359.30-155,443.80

Finding the Fourth Proportional to 454,949.40, 682,359.30 and 155,443.80

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Solution

The fourth proportional to 454,949.40, 682,359.30 and 155,443.80 is: 233,143.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,949.40 : 682,359.30 = 155,443.80 : x
  2. Step 2: Convert to fraction form
    454,949.40/682,359.30 = 155,443.80/x
  3. Step 3: Cross multiply
    454,949.40x = 682,359.30 × 155,443.80
  4. Step 4: Simplify right side
    454,949.40x = 106,068,522,557.34
  5. Step 5: Solve for x
    x = 106,068,522,557.34/454,949.40
  6. Step 6: Final answer
    x = 233,143.56

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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.