Home / 269,680.13-404,402.55-143,289.90

Finding the Fourth Proportional to 269,680.13, 404,402.55 and 143,289.90

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Solution

The fourth proportional to 269,680.13, 404,402.55 and 143,289.90 is: 214,872.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,680.13 : 404,402.55 = 143,289.90 : x
  2. Step 2: Convert to fraction form
    269,680.13/404,402.55 = 143,289.90/x
  3. Step 3: Cross multiply
    269,680.13x = 404,402.55 × 143,289.90
  4. Step 4: Simplify right side
    269,680.13x = 57,946,800,949.25
  5. Step 5: Solve for x
    x = 57,946,800,949.25/269,680.13
  6. Step 6: Final answer
    x = 214,872.35

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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.