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Finding the Fourth Proportional to 148,480.80, 222,721.20 and 115,303.20

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Solution

The fourth proportional to 148,480.80, 222,721.20 and 115,303.20 is: 172,954.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,480.80 : 222,721.20 = 115,303.20 : x
  2. Step 2: Convert to fraction form
    148,480.80/222,721.20 = 115,303.20/x
  3. Step 3: Cross multiply
    148,480.80x = 222,721.20 × 115,303.20
  4. Step 4: Simplify right side
    148,480.80x = 25,680,467,067.84
  5. Step 5: Solve for x
    x = 25,680,467,067.84/148,480.80
  6. Step 6: Final answer
    x = 172,954.80

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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.