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Finding the Fourth Proportional to 217,226.60, 325,839.90 and 213,727.40

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Solution

The fourth proportional to 217,226.60, 325,839.90 and 213,727.40 is: 320,591.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,226.60 : 325,839.90 = 213,727.40 : x
  2. Step 2: Convert to fraction form
    217,226.60/325,839.90 = 213,727.40/x
  3. Step 3: Cross multiply
    217,226.60x = 325,839.90 × 213,727.40
  4. Step 4: Simplify right side
    217,226.60x = 69,640,914,643.26
  5. Step 5: Solve for x
    x = 69,640,914,643.26/217,226.60
  6. Step 6: Final answer
    x = 320,591.10

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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.