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Finding the Fourth Proportional to 339.05, 508.23 and 271.01

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Solution

The fourth proportional to 339.05, 508.23 and 271.01 is: 406.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    339.05 : 508.23 = 271.01 : x
  2. Step 2: Convert to fraction form
    339.05/508.23 = 271.01/x
  3. Step 3: Cross multiply
    339.05x = 508.23 × 271.01
  4. Step 4: Simplify right side
    339.05x = 137,732.87
  5. Step 5: Solve for x
    x = 137,732.87/339.05
  6. Step 6: Final answer
    x = 406.24

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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.