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Finding the Fourth Proportional to 217,818.60, 326,727.90 and 162,522.60

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Solution

The fourth proportional to 217,818.60, 326,727.90 and 162,522.60 is: 243,783.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,818.60 : 326,727.90 = 162,522.60 : x
  2. Step 2: Convert to fraction form
    217,818.60/326,727.90 = 162,522.60/x
  3. Step 3: Cross multiply
    217,818.60x = 326,727.90 × 162,522.60
  4. Step 4: Simplify right side
    217,818.60x = 53,100,667,800.54
  5. Step 5: Solve for x
    x = 53,100,667,800.54/217,818.60
  6. Step 6: Final answer
    x = 243,783.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.