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Finding the Fourth Proportional to 517,249.28, 775,936.08 and 171,044.42

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Solution

The fourth proportional to 517,249.28, 775,936.08 and 171,044.42 is: 256,587.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,249.28 : 775,936.08 = 171,044.42 : x
  2. Step 2: Convert to fraction form
    517,249.28/775,936.08 = 171,044.42/x
  3. Step 3: Cross multiply
    517,249.28x = 775,936.08 × 171,044.42
  4. Step 4: Simplify right side
    517,249.28x = 132,719,532,880.99
  5. Step 5: Solve for x
    x = 132,719,532,880.99/517,249.28
  6. Step 6: Final answer
    x = 256,587.18

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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.