Home / 254,240.10-381,736.80-142,144.20

Finding the Fourth Proportional to 254,240.10, 381,736.80 and 142,144.20

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Solution

The fourth proportional to 254,240.10, 381,736.80 and 142,144.20 is: 213,426.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,240.10 : 381,736.80 = 142,144.20 : x
  2. Step 2: Convert to fraction form
    254,240.10/381,736.80 = 142,144.20/x
  3. Step 3: Cross multiply
    254,240.10x = 381,736.80 × 142,144.20
  4. Step 4: Simplify right side
    254,240.10x = 54,261,672,046.56
  5. Step 5: Solve for x
    x = 54,261,672,046.56/254,240.10
  6. Step 6: Final answer
    x = 213,426.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.