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Finding the Fourth Proportional to 227,078.76, 340,611.64 and 69,284.28

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Solution

The fourth proportional to 227,078.76, 340,611.64 and 69,284.28 is: 103,924.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,078.76 : 340,611.64 = 69,284.28 : x
  2. Step 2: Convert to fraction form
    227,078.76/340,611.64 = 69,284.28/x
  3. Step 3: Cross multiply
    227,078.76x = 340,611.64 × 69,284.28
  4. Step 4: Simplify right side
    227,078.76x = 23,599,032,237.02
  5. Step 5: Solve for x
    x = 23,599,032,237.02/227,078.76
  6. Step 6: Final answer
    x = 103,924.44

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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.