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Finding the Fourth Proportional to 170,975, 256,324.08 and 71,209.87

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Solution

The fourth proportional to 170,975, 256,324.08 and 71,209.87 is: 106,757.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,975 : 256,324.08 = 71,209.87 : x
  2. Step 2: Convert to fraction form
    170,975/256,324.08 = 71,209.87/x
  3. Step 3: Cross multiply
    170,975x = 256,324.08 × 71,209.87
  4. Step 4: Simplify right side
    170,975x = 18,252,803,595.83
  5. Step 5: Solve for x
    x = 18,252,803,595.83/170,975
  6. Step 6: Final answer
    x = 106,757.15

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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.