Home / 260,168.46-389,972.72-170,177.28

Finding the Fourth Proportional to 260,168.46, 389,972.72 and 170,177.28

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Solution

The fourth proportional to 260,168.46, 389,972.72 and 170,177.28 is: 255,082.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,168.46 : 389,972.72 = 170,177.28 : x
  2. Step 2: Convert to fraction form
    260,168.46/389,972.72 = 170,177.28/x
  3. Step 3: Cross multiply
    260,168.46x = 389,972.72 × 170,177.28
  4. Step 4: Simplify right side
    260,168.46x = 66,364,496,763.80
  5. Step 5: Solve for x
    x = 66,364,496,763.80/260,168.46
  6. Step 6: Final answer
    x = 255,082.79

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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.