Home / 254,207.10-381,687.30-142,111.20

Finding the Fourth Proportional to 254,207.10, 381,687.30 and 142,111.20

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Solution

The fourth proportional to 254,207.10, 381,687.30 and 142,111.20 is: 213,377.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,207.10 : 381,687.30 = 142,111.20 : x
  2. Step 2: Convert to fraction form
    254,207.10/381,687.30 = 142,111.20/x
  3. Step 3: Cross multiply
    254,207.10x = 381,687.30 × 142,111.20
  4. Step 4: Simplify right side
    254,207.10x = 54,242,040,227.76
  5. Step 5: Solve for x
    x = 54,242,040,227.76/254,207.10
  6. Step 6: Final answer
    x = 213,377.36

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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.