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Finding the Fourth Proportional to 343.38, 473.75 and 219.08

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Solution

The fourth proportional to 343.38, 473.75 and 219.08 is: 302.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    343.38 : 473.75 = 219.08 : x
  2. Step 2: Convert to fraction form
    343.38/473.75 = 219.08/x
  3. Step 3: Cross multiply
    343.38x = 473.75 × 219.08
  4. Step 4: Simplify right side
    343.38x = 103,790.63
  5. Step 5: Solve for x
    x = 103,790.63/343.38
  6. Step 6: Final answer
    x = 302.26

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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.