Home / 409,201.92-613,887.04-172,545.28

Finding the Fourth Proportional to 409,201.92, 613,887.04 and 172,545.28

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Solution

The fourth proportional to 409,201.92, 613,887.04 and 172,545.28 is: 258,853.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,201.92 : 613,887.04 = 172,545.28 : x
  2. Step 2: Convert to fraction form
    409,201.92/613,887.04 = 172,545.28/x
  3. Step 3: Cross multiply
    409,201.92x = 613,887.04 × 172,545.28
  4. Step 4: Simplify right side
    409,201.92x = 105,923,311,205.17
  5. Step 5: Solve for x
    x = 105,923,311,205.17/409,201.92
  6. Step 6: Final answer
    x = 258,853.41

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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.