Home / 257,845.31-355,832.66-144,676.43

Finding the Fourth Proportional to 257,845.31, 355,832.66 and 144,676.43

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Solution

The fourth proportional to 257,845.31, 355,832.66 and 144,676.43 is: 199,656.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,845.31 : 355,832.66 = 144,676.43 : x
  2. Step 2: Convert to fraction form
    257,845.31/355,832.66 = 144,676.43/x
  3. Step 3: Cross multiply
    257,845.31x = 355,832.66 × 144,676.43
  4. Step 4: Simplify right side
    257,845.31x = 51,480,598,926.20
  5. Step 5: Solve for x
    x = 51,480,598,926.20/257,845.31
  6. Step 6: Final answer
    x = 199,656.91

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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.