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Finding the Fourth Proportional to 201,296.12, 277,789.21 and 115,256.43

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Solution

The fourth proportional to 201,296.12, 277,789.21 and 115,256.43 is: 159,054.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,296.12 : 277,789.21 = 115,256.43 : x
  2. Step 2: Convert to fraction form
    201,296.12/277,789.21 = 115,256.43/x
  3. Step 3: Cross multiply
    201,296.12x = 277,789.21 × 115,256.43
  4. Step 4: Simplify right side
    201,296.12x = 32,016,992,348.98
  5. Step 5: Solve for x
    x = 32,016,992,348.98/201,296.12
  6. Step 6: Final answer
    x = 159,054.20

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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.