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Finding the Fourth Proportional to 227,148.60, 340,739.10 and 69,376.80

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Solution

The fourth proportional to 227,148.60, 340,739.10 and 69,376.80 is: 104,070.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,148.60 : 340,739.10 = 69,376.80 : x
  2. Step 2: Convert to fraction form
    227,148.60/340,739.10 = 69,376.80/x
  3. Step 3: Cross multiply
    227,148.60x = 340,739.10 × 69,376.80
  4. Step 4: Simplify right side
    227,148.60x = 23,639,388,392.88
  5. Step 5: Solve for x
    x = 23,639,388,392.88/227,148.60
  6. Step 6: Final answer
    x = 104,070.15

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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.