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Finding the Fourth Proportional to 236,067.55, 354,205.88 and 123,720.90

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Solution

The fourth proportional to 236,067.55, 354,205.88 and 123,720.90 is: 185,636.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,067.55 : 354,205.88 = 123,720.90 : x
  2. Step 2: Convert to fraction form
    236,067.55/354,205.88 = 123,720.90/x
  3. Step 3: Cross multiply
    236,067.55x = 354,205.88 × 123,720.90
  4. Step 4: Simplify right side
    236,067.55x = 43,822,668,775.97
  5. Step 5: Solve for x
    x = 43,822,668,775.97/236,067.55
  6. Step 6: Final answer
    x = 185,636.14

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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.