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Finding the Fourth Proportional to 343.49, 473.85 and 201.69

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Solution

The fourth proportional to 343.49, 473.85 and 201.69 is: 278.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    343.49 : 473.85 = 201.69 : x
  2. Step 2: Convert to fraction form
    343.49/473.85 = 201.69/x
  3. Step 3: Cross multiply
    343.49x = 473.85 × 201.69
  4. Step 4: Simplify right side
    343.49x = 95,570.81
  5. Step 5: Solve for x
    x = 95,570.81/343.49
  6. Step 6: Final answer
    x = 278.23

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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.