Home / 274,190.68-378,380.48-153,330.56

Finding the Fourth Proportional to 274,190.68, 378,380.48 and 153,330.56

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Solution

The fourth proportional to 274,190.68, 378,380.48 and 153,330.56 is: 211,594.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,190.68 : 378,380.48 = 153,330.56 : x
  2. Step 2: Convert to fraction form
    274,190.68/378,380.48 = 153,330.56/x
  3. Step 3: Cross multiply
    274,190.68x = 378,380.48 × 153,330.56
  4. Step 4: Simplify right side
    274,190.68x = 58,017,290,891.47
  5. Step 5: Solve for x
    x = 58,017,290,891.47/274,190.68
  6. Step 6: Final answer
    x = 211,594.69

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1.5x scale

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.