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Finding the Fourth Proportional to 358.42, 494.62 and 201.02

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Solution

The fourth proportional to 358.42, 494.62 and 201.02 is: 277.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.42 : 494.62 = 201.02 : x
  2. Step 2: Convert to fraction form
    358.42/494.62 = 201.02/x
  3. Step 3: Cross multiply
    358.42x = 494.62 × 201.02
  4. Step 4: Simplify right side
    358.42x = 99,428.51
  5. Step 5: Solve for x
    x = 99,428.51/358.42
  6. Step 6: Final answer
    x = 277.41

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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.