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Finding the Fourth Proportional to 271,661.07, 407,452.38 and 91,713.87

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Solution

The fourth proportional to 271,661.07, 407,452.38 and 91,713.87 is: 137,557.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,661.07 : 407,452.38 = 91,713.87 : x
  2. Step 2: Convert to fraction form
    271,661.07/407,452.38 = 91,713.87/x
  3. Step 3: Cross multiply
    271,661.07x = 407,452.38 × 91,713.87
  4. Step 4: Simplify right side
    271,661.07x = 37,369,034,266.58
  5. Step 5: Solve for x
    x = 37,369,034,266.58/271,661.07
  6. Step 6: Final answer
    x = 137,557.56

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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.