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Finding the Fourth Proportional to 217,217.72, 299,755.44 and 126,567.92

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Solution

The fourth proportional to 217,217.72, 299,755.44 and 126,567.92 is: 174,660.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,217.72 : 299,755.44 = 126,567.92 : x
  2. Step 2: Convert to fraction form
    217,217.72/299,755.44 = 126,567.92/x
  3. Step 3: Cross multiply
    217,217.72x = 299,755.44 × 126,567.92
  4. Step 4: Simplify right side
    217,217.72x = 37,939,422,549.48
  5. Step 5: Solve for x
    x = 37,939,422,549.48/217,217.72
  6. Step 6: Final answer
    x = 174,660.81

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1.5x scale

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.