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Finding the Fourth Proportional to 217,361.26, 300,104.22 and 135,813.16

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Solution

The fourth proportional to 217,361.26, 300,104.22 and 135,813.16 is: 187,513.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,361.26 : 300,104.22 = 135,813.16 : x
  2. Step 2: Convert to fraction form
    217,361.26/300,104.22 = 135,813.16/x
  3. Step 3: Cross multiply
    217,361.26x = 300,104.22 × 135,813.16
  4. Step 4: Simplify right side
    217,361.26x = 40,758,102,447.54
  5. Step 5: Solve for x
    x = 40,758,102,447.54/217,361.26
  6. Step 6: Final answer
    x = 187,513.19

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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.