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Finding the Fourth Proportional to 217,489.44, 300,727.44 and 189,495.84

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Solution

The fourth proportional to 217,489.44, 300,727.44 and 189,495.84 is: 262,020.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,489.44 : 300,727.44 = 189,495.84 : x
  2. Step 2: Convert to fraction form
    217,489.44/300,727.44 = 189,495.84/x
  3. Step 3: Cross multiply
    217,489.44x = 300,727.44 × 189,495.84
  4. Step 4: Simplify right side
    217,489.44x = 56,986,598,853.85
  5. Step 5: Solve for x
    x = 56,986,598,853.85/217,489.44
  6. Step 6: Final answer
    x = 262,020.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.