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Finding the Fourth Proportional to 217,340.26, 299,930.64 and 126,759.04

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Solution

The fourth proportional to 217,340.26, 299,930.64 and 126,759.04 is: 174,928.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,340.26 : 299,930.64 = 126,759.04 : x
  2. Step 2: Convert to fraction form
    217,340.26/299,930.64 = 126,759.04/x
  3. Step 3: Cross multiply
    217,340.26x = 299,930.64 × 126,759.04
  4. Step 4: Simplify right side
    217,340.26x = 38,018,919,992.99
  5. Step 5: Solve for x
    x = 38,018,919,992.99/217,340.26
  6. Step 6: Final answer
    x = 174,928.11

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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.