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Finding the Fourth Proportional to 217,487.52, 326,469.90 and 172,796.13

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Solution

The fourth proportional to 217,487.52, 326,469.90 and 172,796.13 is: 259,383.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,487.52 : 326,469.90 = 172,796.13 : x
  2. Step 2: Convert to fraction form
    217,487.52/326,469.90 = 172,796.13/x
  3. Step 3: Cross multiply
    217,487.52x = 326,469.90 × 172,796.13
  4. Step 4: Simplify right side
    217,487.52x = 56,412,735,281.49
  5. Step 5: Solve for x
    x = 56,412,735,281.49/217,487.52
  6. Step 6: Final answer
    x = 259,383.78

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1.5x scale

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.