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Finding the Fourth Proportional to 193,122, 266,486.76 and 108,226.80

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Solution

The fourth proportional to 193,122, 266,486.76 and 108,226.80 is: 149,340.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,122 : 266,486.76 = 108,226.80 : x
  2. Step 2: Convert to fraction form
    193,122/266,486.76 = 108,226.80/x
  3. Step 3: Cross multiply
    193,122x = 266,486.76 × 108,226.80
  4. Step 4: Simplify right side
    193,122x = 28,841,009,277.17
  5. Step 5: Solve for x
    x = 28,841,009,277.17/193,122
  6. Step 6: Final answer
    x = 149,340.88

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Why These Related Problems?

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