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Finding the Fourth Proportional to 225,036.68, 310,685.37 and 140,268.56

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Solution

The fourth proportional to 225,036.68, 310,685.37 and 140,268.56 is: 193,654.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,036.68 : 310,685.37 = 140,268.56 : x
  2. Step 2: Convert to fraction form
    225,036.68/310,685.37 = 140,268.56/x
  3. Step 3: Cross multiply
    225,036.68x = 310,685.37 × 140,268.56
  4. Step 4: Simplify right side
    225,036.68x = 43,579,389,462.97
  5. Step 5: Solve for x
    x = 43,579,389,462.97/225,036.68
  6. Step 6: Final answer
    x = 193,654.61

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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.