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Finding the Fourth Proportional to 356.26, 491.41 and 232.09

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Solution

The fourth proportional to 356.26, 491.41 and 232.09 is: 320.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.26 : 491.41 = 232.09 : x
  2. Step 2: Convert to fraction form
    356.26/491.41 = 232.09/x
  3. Step 3: Cross multiply
    356.26x = 491.41 × 232.09
  4. Step 4: Simplify right side
    356.26x = 114,051.35
  5. Step 5: Solve for x
    x = 114,051.35/356.26
  6. Step 6: Final answer
    x = 320.14

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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.