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Finding the Fourth Proportional to 227,216.20, 340,824.30 and 143,235.40

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Solution

The fourth proportional to 227,216.20, 340,824.30 and 143,235.40 is: 214,853.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,216.20 : 340,824.30 = 143,235.40 : x
  2. Step 2: Convert to fraction form
    227,216.20/340,824.30 = 143,235.40/x
  3. Step 3: Cross multiply
    227,216.20x = 340,824.30 × 143,235.40
  4. Step 4: Simplify right side
    227,216.20x = 48,818,104,940.22
  5. Step 5: Solve for x
    x = 48,818,104,940.22/227,216.20
  6. Step 6: Final answer
    x = 214,853.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.