Home / 274,319.25-378,561.13-153,462.56

Finding the Fourth Proportional to 274,319.25, 378,561.13 and 153,462.56

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Solution

The fourth proportional to 274,319.25, 378,561.13 and 153,462.56 is: 211,778.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,319.25 : 378,561.13 = 153,462.56 : x
  2. Step 2: Convert to fraction form
    274,319.25/378,561.13 = 153,462.56/x
  3. Step 3: Cross multiply
    274,319.25x = 378,561.13 × 153,462.56
  4. Step 4: Simplify right side
    274,319.25x = 58,094,959,979.24
  5. Step 5: Solve for x
    x = 58,094,959,979.24/274,319.25
  6. Step 6: Final answer
    x = 211,778.65

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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.