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Finding the Fourth Proportional to 341.28, 471.06 and 201.42

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Solution

The fourth proportional to 341.28, 471.06 and 201.42 is: 278.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.28 : 471.06 = 201.42 : x
  2. Step 2: Convert to fraction form
    341.28/471.06 = 201.42/x
  3. Step 3: Cross multiply
    341.28x = 471.06 × 201.42
  4. Step 4: Simplify right side
    341.28x = 94,880.91
  5. Step 5: Solve for x
    x = 94,880.91/341.28
  6. Step 6: Final answer
    x = 278.01

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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.