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Finding the Fourth Proportional to 201,254.56, 301,936.28 and 68,134.80

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Solution

The fourth proportional to 201,254.56, 301,936.28 and 68,134.80 is: 102,220.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,254.56 : 301,936.28 = 68,134.80 : x
  2. Step 2: Convert to fraction form
    201,254.56/301,936.28 = 68,134.80/x
  3. Step 3: Cross multiply
    201,254.56x = 301,936.28 × 68,134.80
  4. Step 4: Simplify right side
    201,254.56x = 20,572,368,050.54
  5. Step 5: Solve for x
    x = 20,572,368,050.54/201,254.56
  6. Step 6: Final answer
    x = 102,220.63

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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.