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Finding the Fourth Proportional to 251,409.75, 377,040.81 and 73,874.55

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Solution

The fourth proportional to 251,409.75, 377,040.81 and 73,874.55 is: 110,790.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,409.75 : 377,040.81 = 73,874.55 : x
  2. Step 2: Convert to fraction form
    251,409.75/377,040.81 = 73,874.55/x
  3. Step 3: Cross multiply
    251,409.75x = 377,040.81 × 73,874.55
  4. Step 4: Simplify right side
    251,409.75x = 27,853,720,170.39
  5. Step 5: Solve for x
    x = 27,853,720,170.39/251,409.75
  6. Step 6: Final answer
    x = 110,790.14

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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.