Home / 209,293.32-313,939.92-172,207.44

Finding the Fourth Proportional to 209,293.32, 313,939.92 and 172,207.44

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Solution

The fourth proportional to 209,293.32, 313,939.92 and 172,207.44 is: 258,311.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,293.32 : 313,939.92 = 172,207.44 : x
  2. Step 2: Convert to fraction form
    209,293.32/313,939.92 = 172,207.44/x
  3. Step 3: Cross multiply
    209,293.32x = 313,939.92 × 172,207.44
  4. Step 4: Simplify right side
    209,293.32x = 54,062,789,937.00
  5. Step 5: Solve for x
    x = 54,062,789,937.00/209,293.32
  6. Step 6: Final answer
    x = 258,311.11

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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.