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Finding the Fourth Proportional to 247,751.82, 341,921.39 and 138,855.62

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Solution

The fourth proportional to 247,751.82, 341,921.39 and 138,855.62 is: 191,634.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,751.82 : 341,921.39 = 138,855.62 : x
  2. Step 2: Convert to fraction form
    247,751.82/341,921.39 = 138,855.62/x
  3. Step 3: Cross multiply
    247,751.82x = 341,921.39 × 138,855.62
  4. Step 4: Simplify right side
    247,751.82x = 47,477,706,760.24
  5. Step 5: Solve for x
    x = 47,477,706,760.24/247,751.82
  6. Step 6: Final answer
    x = 191,634.14

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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.