Home / 442,990.73-664,551.30-143,371.73

Finding the Fourth Proportional to 442,990.73, 664,551.30 and 143,371.73

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Solution

The fourth proportional to 442,990.73, 664,551.30 and 143,371.73 is: 215,078.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,990.73 : 664,551.30 = 143,371.73 : x
  2. Step 2: Convert to fraction form
    442,990.73/664,551.30 = 143,371.73/x
  3. Step 3: Cross multiply
    442,990.73x = 664,551.30 × 143,371.73
  4. Step 4: Simplify right side
    442,990.73x = 95,277,869,554.75
  5. Step 5: Solve for x
    x = 95,277,869,554.75/442,990.73
  6. Step 6: Final answer
    x = 215,078.70

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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.