Home / 397,211.11-595,480.78-172,402.57

Finding the Fourth Proportional to 397,211.11, 595,480.78 and 172,402.57

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Solution

The fourth proportional to 397,211.11, 595,480.78 and 172,402.57 is: 258,458.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,211.11 : 595,480.78 = 172,402.57 : x
  2. Step 2: Convert to fraction form
    397,211.11/595,480.78 = 172,402.57/x
  3. Step 3: Cross multiply
    397,211.11x = 595,480.78 × 172,402.57
  4. Step 4: Simplify right side
    397,211.11x = 102,662,416,857.61
  5. Step 5: Solve for x
    x = 102,662,416,857.61/397,211.11
  6. Step 6: Final answer
    x = 258,458.07

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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.