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Finding the Fourth Proportional to 227,277.95, 340,916.92 and 215,913.15

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Solution

The fourth proportional to 227,277.95, 340,916.92 and 215,913.15 is: 323,869.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,277.95 : 340,916.92 = 215,913.15 : x
  2. Step 2: Convert to fraction form
    227,277.95/340,916.92 = 215,913.15/x
  3. Step 3: Cross multiply
    227,277.95x = 340,916.92 × 215,913.15
  4. Step 4: Simplify right side
    227,277.95x = 73,608,445,194.14
  5. Step 5: Solve for x
    x = 73,608,445,194.14/227,277.95
  6. Step 6: Final answer
    x = 323,869.71

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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.