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Finding the Fourth Proportional to 149,203.80, 223,805.70 and 115,378.20

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Solution

The fourth proportional to 149,203.80, 223,805.70 and 115,378.20 is: 173,067.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,203.80 : 223,805.70 = 115,378.20 : x
  2. Step 2: Convert to fraction form
    149,203.80/223,805.70 = 115,378.20/x
  3. Step 3: Cross multiply
    149,203.80x = 223,805.70 × 115,378.20
  4. Step 4: Simplify right side
    149,203.80x = 25,822,298,815.74
  5. Step 5: Solve for x
    x = 25,822,298,815.74/149,203.80
  6. Step 6: Final answer
    x = 173,067.30

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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.