Home / 274,616.04-378,949.86-153,729.48

Finding the Fourth Proportional to 274,616.04, 378,949.86 and 153,729.48

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Solution

The fourth proportional to 274,616.04, 378,949.86 and 153,729.48 is: 212,135.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,616.04 : 378,949.86 = 153,729.48 : x
  2. Step 2: Convert to fraction form
    274,616.04/378,949.86 = 153,729.48/x
  3. Step 3: Cross multiply
    274,616.04x = 378,949.86 × 153,729.48
  4. Step 4: Simplify right side
    274,616.04x = 58,255,764,923.87
  5. Step 5: Solve for x
    x = 58,255,764,923.87/274,616.04
  6. Step 6: Final answer
    x = 212,135.33

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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.