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Finding the Fourth Proportional to 356.26, 491.62 and 201

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Solution

The fourth proportional to 356.26, 491.62 and 201 is: 277.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.26 : 491.62 = 201 : x
  2. Step 2: Convert to fraction form
    356.26/491.62 = 201/x
  3. Step 3: Cross multiply
    356.26x = 491.62 × 201
  4. Step 4: Simplify right side
    356.26x = 98,815.62
  5. Step 5: Solve for x
    x = 98,815.62/356.26
  6. Step 6: Final answer
    x = 277.37

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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.