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Finding the Fourth Proportional to 343.98, 474.53 and 213.03

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Solution

The fourth proportional to 343.98, 474.53 and 213.03 is: 293.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    343.98 : 474.53 = 213.03 : x
  2. Step 2: Convert to fraction form
    343.98/474.53 = 213.03/x
  3. Step 3: Cross multiply
    343.98x = 474.53 × 213.03
  4. Step 4: Simplify right side
    343.98x = 101,088.06
  5. Step 5: Solve for x
    x = 101,088.06/343.98
  6. Step 6: Final answer
    x = 293.88

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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.