Home / 252,589.20-378,880.56-72,679.02

Finding the Fourth Proportional to 252,589.20, 378,880.56 and 72,679.02

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Solution

The fourth proportional to 252,589.20, 378,880.56 and 72,679.02 is: 109,017.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,589.20 : 378,880.56 = 72,679.02 : x
  2. Step 2: Convert to fraction form
    252,589.20/378,880.56 = 72,679.02/x
  3. Step 3: Cross multiply
    252,589.20x = 378,880.56 × 72,679.02
  4. Step 4: Simplify right side
    252,589.20x = 27,536,667,797.85
  5. Step 5: Solve for x
    x = 27,536,667,797.85/252,589.20
  6. Step 6: Final answer
    x = 109,017.60

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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.