Home / 257,179.42-385,582.20-107,462.56

Finding the Fourth Proportional to 257,179.42, 385,582.20 and 107,462.56

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Solution

The fourth proportional to 257,179.42, 385,582.20 and 107,462.56 is: 161,115.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,179.42 : 385,582.20 = 107,462.56 : x
  2. Step 2: Convert to fraction form
    257,179.42/385,582.20 = 107,462.56/x
  3. Step 3: Cross multiply
    257,179.42x = 385,582.20 × 107,462.56
  4. Step 4: Simplify right side
    257,179.42x = 41,435,650,302.43
  5. Step 5: Solve for x
    x = 41,435,650,302.43/257,179.42
  6. Step 6: Final answer
    x = 161,115.73

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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.