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Finding the Fourth Proportional to 177,329.60, 266,006.40 and 72,150.40

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Solution

The fourth proportional to 177,329.60, 266,006.40 and 72,150.40 is: 108,230.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,329.60 : 266,006.40 = 72,150.40 : x
  2. Step 2: Convert to fraction form
    177,329.60/266,006.40 = 72,150.40/x
  3. Step 3: Cross multiply
    177,329.60x = 266,006.40 × 72,150.40
  4. Step 4: Simplify right side
    177,329.60x = 19,192,468,162.56
  5. Step 5: Solve for x
    x = 19,192,468,162.56/177,329.60
  6. Step 6: Final answer
    x = 108,230.48

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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.