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Finding the Fourth Proportional to 177,579.92, 266,468.30 and 72,390.68

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Solution

The fourth proportional to 177,579.92, 266,468.30 and 72,390.68 is: 108,626.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,579.92 : 266,468.30 = 72,390.68 : x
  2. Step 2: Convert to fraction form
    177,579.92/266,468.30 = 72,390.68/x
  3. Step 3: Cross multiply
    177,579.92x = 266,468.30 × 72,390.68
  4. Step 4: Simplify right side
    177,579.92x = 19,289,821,435.44
  5. Step 5: Solve for x
    x = 19,289,821,435.44/177,579.92
  6. Step 6: Final answer
    x = 108,626.14

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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.