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Finding the Fourth Proportional to 269,542.40, 404,337.90 and 111,738.20

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Solution

The fourth proportional to 269,542.40, 404,337.90 and 111,738.20 is: 167,617.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,542.40 : 404,337.90 = 111,738.20 : x
  2. Step 2: Convert to fraction form
    269,542.40/404,337.90 = 111,738.20/x
  3. Step 3: Cross multiply
    269,542.40x = 404,337.90 × 111,738.20
  4. Step 4: Simplify right side
    269,542.40x = 45,179,989,137.78
  5. Step 5: Solve for x
    x = 45,179,989,137.78/269,542.40
  6. Step 6: Final answer
    x = 167,617.37

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1.5x scale

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.