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Finding the Fourth Proportional to 227,340.90, 340,428.15 and 216,843.30

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Solution

The fourth proportional to 227,340.90, 340,428.15 and 216,843.30 is: 324,708.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,340.90 : 340,428.15 = 216,843.30 : x
  2. Step 2: Convert to fraction form
    227,340.90/340,428.15 = 216,843.30/x
  3. Step 3: Cross multiply
    227,340.90x = 340,428.15 × 216,843.30
  4. Step 4: Simplify right side
    227,340.90x = 73,819,563,458.90
  5. Step 5: Solve for x
    x = 73,819,563,458.90/227,340.90
  6. Step 6: Final answer
    x = 324,708.68

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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.