Home / 274,023.49-378,160.38-149,851.76

Finding the Fourth Proportional to 274,023.49, 378,160.38 and 149,851.76

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Solution

The fourth proportional to 274,023.49, 378,160.38 and 149,851.76 is: 206,799.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,023.49 : 378,160.38 = 149,851.76 : x
  2. Step 2: Convert to fraction form
    274,023.49/378,160.38 = 149,851.76/x
  3. Step 3: Cross multiply
    274,023.49x = 378,160.38 × 149,851.76
  4. Step 4: Simplify right side
    274,023.49x = 56,667,997,756.01
  5. Step 5: Solve for x
    x = 56,667,997,756.01/274,023.49
  6. Step 6: Final answer
    x = 206,799.78

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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.