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Finding the Fourth Proportional to 177,940.80, 266,911.20 and 169,192.80

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Solution

The fourth proportional to 177,940.80, 266,911.20 and 169,192.80 is: 253,789.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,940.80 : 266,911.20 = 169,192.80 : x
  2. Step 2: Convert to fraction form
    177,940.80/266,911.20 = 169,192.80/x
  3. Step 3: Cross multiply
    177,940.80x = 266,911.20 × 169,192.80
  4. Step 4: Simplify right side
    177,940.80x = 45,159,453,279.36
  5. Step 5: Solve for x
    x = 45,159,453,279.36/177,940.80
  6. Step 6: Final answer
    x = 253,789.20

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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.