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Finding the Fourth Proportional to 252.96, 347.98 and 206.23

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Solution

The fourth proportional to 252.96, 347.98 and 206.23 is: 283.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.96 : 347.98 = 206.23 : x
  2. Step 2: Convert to fraction form
    252.96/347.98 = 206.23/x
  3. Step 3: Cross multiply
    252.96x = 347.98 × 206.23
  4. Step 4: Simplify right side
    252.96x = 71,763.71
  5. Step 5: Solve for x
    x = 71,763.71/252.96
  6. Step 6: Final answer
    x = 283.70

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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.