Home / 209,982.72-314,662.92-172,806.96

Finding the Fourth Proportional to 209,982.72, 314,662.92 and 172,806.96

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Solution

The fourth proportional to 209,982.72, 314,662.92 and 172,806.96 is: 258,954.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,982.72 : 314,662.92 = 172,806.96 : x
  2. Step 2: Convert to fraction form
    209,982.72/314,662.92 = 172,806.96/x
  3. Step 3: Cross multiply
    209,982.72x = 314,662.92 × 172,806.96
  4. Step 4: Simplify right side
    209,982.72x = 54,375,942,629.92
  5. Step 5: Solve for x
    x = 54,375,942,629.92/209,982.72
  6. Step 6: Final answer
    x = 258,954.37

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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.