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Finding the Fourth Proportional to 265,687.69, 366,630.69 and 149,418.54

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Solution

The fourth proportional to 265,687.69, 366,630.69 and 149,418.54 is: 206,187.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,687.69 : 366,630.69 = 149,418.54 : x
  2. Step 2: Convert to fraction form
    265,687.69/366,630.69 = 149,418.54/x
  3. Step 3: Cross multiply
    265,687.69x = 366,630.69 × 149,418.54
  4. Step 4: Simplify right side
    265,687.69x = 54,781,422,418.99
  5. Step 5: Solve for x
    x = 54,781,422,418.99/265,687.69
  6. Step 6: Final answer
    x = 206,187.28

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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.