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Finding the Fourth Proportional to 223,262.09, 308,101.95 and 121,287.62

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Solution

The fourth proportional to 223,262.09, 308,101.95 and 121,287.62 is: 167,377.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,262.09 : 308,101.95 = 121,287.62 : x
  2. Step 2: Convert to fraction form
    223,262.09/308,101.95 = 121,287.62/x
  3. Step 3: Cross multiply
    223,262.09x = 308,101.95 × 121,287.62
  4. Step 4: Simplify right side
    223,262.09x = 37,368,951,270.04
  5. Step 5: Solve for x
    x = 37,368,951,270.04/223,262.09
  6. Step 6: Final answer
    x = 167,377.06

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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.