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Finding the Fourth Proportional to 217,390.35, 299,651.98 and 171,374.97

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Solution

The fourth proportional to 217,390.35, 299,651.98 and 171,374.97 is: 236,224.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,390.35 : 299,651.98 = 171,374.97 : x
  2. Step 2: Convert to fraction form
    217,390.35/299,651.98 = 171,374.97/x
  3. Step 3: Cross multiply
    217,390.35x = 299,651.98 × 171,374.97
  4. Step 4: Simplify right side
    217,390.35x = 51,352,849,082.94
  5. Step 5: Solve for x
    x = 51,352,849,082.94/217,390.35
  6. Step 6: Final answer
    x = 236,224.14

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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.