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Finding the Fourth Proportional to 201,399.44, 277,932.96 and 109,519.02

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Solution

The fourth proportional to 201,399.44, 277,932.96 and 109,519.02 is: 151,137.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,399.44 : 277,932.96 = 109,519.02 : x
  2. Step 2: Convert to fraction form
    201,399.44/277,932.96 = 109,519.02/x
  3. Step 3: Cross multiply
    201,399.44x = 277,932.96 × 109,519.02
  4. Step 4: Simplify right side
    201,399.44x = 30,438,945,404.90
  5. Step 5: Solve for x
    x = 30,438,945,404.90/201,399.44
  6. Step 6: Final answer
    x = 151,137.19

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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.