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Finding the Fourth Proportional to 356.26, 491.50 and 201.01

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Solution

The fourth proportional to 356.26, 491.50 and 201.01 is: 277.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.26 : 491.50 = 201.01 : x
  2. Step 2: Convert to fraction form
    356.26/491.50 = 201.01/x
  3. Step 3: Cross multiply
    356.26x = 491.50 × 201.01
  4. Step 4: Simplify right side
    356.26x = 98,796.42
  5. Step 5: Solve for x
    x = 98,796.42/356.26
  6. Step 6: Final answer
    x = 277.32

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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.