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Finding the Fourth Proportional to 521,164.56, 781,763.76 and 179,604.48

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Solution

The fourth proportional to 521,164.56, 781,763.76 and 179,604.48 is: 269,412.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,164.56 : 781,763.76 = 179,604.48 : x
  2. Step 2: Convert to fraction form
    521,164.56/781,763.76 = 179,604.48/x
  3. Step 3: Cross multiply
    521,164.56x = 781,763.76 × 179,604.48
  4. Step 4: Simplify right side
    521,164.56x = 140,408,273,597.65
  5. Step 5: Solve for x
    x = 140,408,273,597.65/521,164.56
  6. Step 6: Final answer
    x = 269,412.55

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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.