Home / 274,023.05-378,169.49-153,169.43

Finding the Fourth Proportional to 274,023.05, 378,169.49 and 153,169.43

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Solution

The fourth proportional to 274,023.05, 378,169.49 and 153,169.43 is: 211,383.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,023.05 : 378,169.49 = 153,169.43 : x
  2. Step 2: Convert to fraction form
    274,023.05/378,169.49 = 153,169.43/x
  3. Step 3: Cross multiply
    274,023.05x = 378,169.49 × 153,169.43
  4. Step 4: Simplify right side
    274,023.05x = 57,924,004,460.84
  5. Step 5: Solve for x
    x = 57,924,004,460.84/274,023.05
  6. Step 6: Final answer
    x = 211,383.69

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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.