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Finding the Fourth Proportional to 217,008.72, 325,236.06 and 188,811

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Solution

The fourth proportional to 217,008.72, 325,236.06 and 188,811 is: 282,975.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,008.72 : 325,236.06 = 188,811 : x
  2. Step 2: Convert to fraction form
    217,008.72/325,236.06 = 188,811/x
  3. Step 3: Cross multiply
    217,008.72x = 325,236.06 × 188,811
  4. Step 4: Simplify right side
    217,008.72x = 61,408,145,724.66
  5. Step 5: Solve for x
    x = 61,408,145,724.66/217,008.72
  6. Step 6: Final answer
    x = 282,975.48

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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.