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Finding the Fourth Proportional to 227,290.30, 340,880.78 and 69,520.12

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Solution

The fourth proportional to 227,290.30, 340,880.78 and 69,520.12 is: 104,263.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,290.30 : 340,880.78 = 69,520.12 : x
  2. Step 2: Convert to fraction form
    227,290.30/340,880.78 = 69,520.12/x
  3. Step 3: Cross multiply
    227,290.30x = 340,880.78 × 69,520.12
  4. Step 4: Simplify right side
    227,290.30x = 23,698,072,731.29
  5. Step 5: Solve for x
    x = 23,698,072,731.29/227,290.30
  6. Step 6: Final answer
    x = 104,263.46

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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.