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Finding the Fourth Proportional to 508.26, 701.41 and 287.17

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Solution

The fourth proportional to 508.26, 701.41 and 287.17 is: 396.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.26 : 701.41 = 287.17 : x
  2. Step 2: Convert to fraction form
    508.26/701.41 = 287.17/x
  3. Step 3: Cross multiply
    508.26x = 701.41 × 287.17
  4. Step 4: Simplify right side
    508.26x = 201,421.98
  5. Step 5: Solve for x
    x = 201,421.98/508.26
  6. Step 6: Final answer
    x = 396.29

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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.