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Finding the Fourth Proportional to 177,446.60, 266,072.70 and 72,146.60

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Solution

The fourth proportional to 177,446.60, 266,072.70 and 72,146.60 is: 108,180.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,446.60 : 266,072.70 = 72,146.60 : x
  2. Step 2: Convert to fraction form
    177,446.60/266,072.70 = 72,146.60/x
  3. Step 3: Cross multiply
    177,446.60x = 266,072.70 × 72,146.60
  4. Step 4: Simplify right side
    177,446.60x = 19,196,240,657.82
  5. Step 5: Solve for x
    x = 19,196,240,657.82/177,446.60
  6. Step 6: Final answer
    x = 108,180.38

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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.