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Finding the Fourth Proportional to 252,040.40, 378,233.40 and 111,899.60

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Solution

The fourth proportional to 252,040.40, 378,233.40 and 111,899.60 is: 167,926.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,040.40 : 378,233.40 = 111,899.60 : x
  2. Step 2: Convert to fraction form
    252,040.40/378,233.40 = 111,899.60/x
  3. Step 3: Cross multiply
    252,040.40x = 378,233.40 × 111,899.60
  4. Step 4: Simplify right side
    252,040.40x = 42,324,166,166.64
  5. Step 5: Solve for x
    x = 42,324,166,166.64/252,040.40
  6. Step 6: Final answer
    x = 167,926.12

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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.