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Finding the Fourth Proportional to 179,421.60, 269,715.60 and 127,192.80

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Solution

The fourth proportional to 179,421.60, 269,715.60 and 127,192.80 is: 191,202.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,421.60 : 269,715.60 = 127,192.80 : x
  2. Step 2: Convert to fraction form
    179,421.60/269,715.60 = 127,192.80/x
  3. Step 3: Cross multiply
    179,421.60x = 269,715.60 × 127,192.80
  4. Step 4: Simplify right side
    179,421.60x = 34,305,882,367.68
  5. Step 5: Solve for x
    x = 34,305,882,367.68/179,421.60
  6. Step 6: Final answer
    x = 191,202.63

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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.