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Finding the Fourth Proportional to 240,448.38, 331,843.68 and 138,477.48

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Solution

The fourth proportional to 240,448.38, 331,843.68 and 138,477.48 is: 191,113.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,448.38 : 331,843.68 = 138,477.48 : x
  2. Step 2: Convert to fraction form
    240,448.38/331,843.68 = 138,477.48/x
  3. Step 3: Cross multiply
    240,448.38x = 331,843.68 × 138,477.48
  4. Step 4: Simplify right side
    240,448.38x = 45,952,876,560.33
  5. Step 5: Solve for x
    x = 45,952,876,560.33/240,448.38
  6. Step 6: Final answer
    x = 191,113.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.