Home / 274,080.20-378,233.46-153,228.20

Finding the Fourth Proportional to 274,080.20, 378,233.46 and 153,228.20

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Solution

The fourth proportional to 274,080.20, 378,233.46 and 153,228.20 is: 211,456.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,080.20 : 378,233.46 = 153,228.20 : x
  2. Step 2: Convert to fraction form
    274,080.20/378,233.46 = 153,228.20/x
  3. Step 3: Cross multiply
    274,080.20x = 378,233.46 × 153,228.20
  4. Step 4: Simplify right side
    274,080.20x = 57,956,032,255.57
  5. Step 5: Solve for x
    x = 57,956,032,255.57/274,080.20
  6. Step 6: Final answer
    x = 211,456.47

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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.