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Finding the Fourth Proportional to 201,775.41, 278,446.01 and 126,365.49

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Solution

The fourth proportional to 201,775.41, 278,446.01 and 126,365.49 is: 174,381.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,775.41 : 278,446.01 = 126,365.49 : x
  2. Step 2: Convert to fraction form
    201,775.41/278,446.01 = 126,365.49/x
  3. Step 3: Cross multiply
    201,775.41x = 278,446.01 × 126,365.49
  4. Step 4: Simplify right side
    201,775.41x = 35,185,965,860.37
  5. Step 5: Solve for x
    x = 35,185,965,860.37/201,775.41
  6. Step 6: Final answer
    x = 174,381.83

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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.