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Finding the Fourth Proportional to 201,195.40, 301,601.10 and 74,801.80

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Solution

The fourth proportional to 201,195.40, 301,601.10 and 74,801.80 is: 112,131.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,195.40 : 301,601.10 = 74,801.80 : x
  2. Step 2: Convert to fraction form
    201,195.40/301,601.10 = 74,801.80/x
  3. Step 3: Cross multiply
    201,195.40x = 301,601.10 × 74,801.80
  4. Step 4: Simplify right side
    201,195.40x = 22,560,305,161.98
  5. Step 5: Solve for x
    x = 22,560,305,161.98/201,195.40
  6. Step 6: Final answer
    x = 112,131.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.