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Finding the Fourth Proportional to 193,272.69, 266,715.79 and 108,391.57

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Solution

The fourth proportional to 193,272.69, 266,715.79 and 108,391.57 is: 149,580.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,272.69 : 266,715.79 = 108,391.57 : x
  2. Step 2: Convert to fraction form
    193,272.69/266,715.79 = 108,391.57/x
  3. Step 3: Cross multiply
    193,272.69x = 266,715.79 × 108,391.57
  4. Step 4: Simplify right side
    193,272.69x = 28,909,743,221.89
  5. Step 5: Solve for x
    x = 28,909,743,221.89/193,272.69
  6. Step 6: Final answer
    x = 149,580.07

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.