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Finding the Fourth Proportional to 227,280.60, 340,918.64 and 87,039.23

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Solution

The fourth proportional to 227,280.60, 340,918.64 and 87,039.23 is: 130,557.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,280.60 : 340,918.64 = 87,039.23 : x
  2. Step 2: Convert to fraction form
    227,280.60/340,918.64 = 87,039.23/x
  3. Step 3: Cross multiply
    227,280.60x = 340,918.64 × 87,039.23
  4. Step 4: Simplify right side
    227,280.60x = 29,673,294,431.25
  5. Step 5: Solve for x
    x = 29,673,294,431.25/227,280.60
  6. Step 6: Final answer
    x = 130,557.97

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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.