Home / 274,240.38-378,449.54-153,381.57

Finding the Fourth Proportional to 274,240.38, 378,449.54 and 153,381.57

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Solution

The fourth proportional to 274,240.38, 378,449.54 and 153,381.57 is: 211,665.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,240.38 : 378,449.54 = 153,381.57 : x
  2. Step 2: Convert to fraction form
    274,240.38/378,449.54 = 153,381.57/x
  3. Step 3: Cross multiply
    274,240.38x = 378,449.54 × 153,381.57
  4. Step 4: Simplify right side
    274,240.38x = 58,047,182,568.68
  5. Step 5: Solve for x
    x = 58,047,182,568.68/274,240.38
  6. Step 6: Final answer
    x = 211,665.34

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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.