Home / 257,243.82-385,865.94-107,402.42

Finding the Fourth Proportional to 257,243.82, 385,865.94 and 107,402.42

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Solution

The fourth proportional to 257,243.82, 385,865.94 and 107,402.42 is: 161,103.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,243.82 : 385,865.94 = 107,402.42 : x
  2. Step 2: Convert to fraction form
    257,243.82/385,865.94 = 107,402.42/x
  3. Step 3: Cross multiply
    257,243.82x = 385,865.94 × 107,402.42
  4. Step 4: Simplify right side
    257,243.82x = 41,442,937,119.00
  5. Step 5: Solve for x
    x = 41,442,937,119.00/257,243.82
  6. Step 6: Final answer
    x = 161,103.73

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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.