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Finding the Fourth Proportional to 227,240.80, 340,861.20 and 225,858.40

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Solution

The fourth proportional to 227,240.80, 340,861.20 and 225,858.40 is: 338,787.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,240.80 : 340,861.20 = 225,858.40 : x
  2. Step 2: Convert to fraction form
    227,240.80/340,861.20 = 225,858.40/x
  3. Step 3: Cross multiply
    227,240.80x = 340,861.20 × 225,858.40
  4. Step 4: Simplify right side
    227,240.80x = 76,986,365,254.08
  5. Step 5: Solve for x
    x = 76,986,365,254.08/227,240.80
  6. Step 6: Final answer
    x = 338,787.60

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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.