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Finding the Fourth Proportional to 336.30, 463.88 and 205.20

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Solution

The fourth proportional to 336.30, 463.88 and 205.20 is: 283.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.30 : 463.88 = 205.20 : x
  2. Step 2: Convert to fraction form
    336.30/463.88 = 205.20/x
  3. Step 3: Cross multiply
    336.30x = 463.88 × 205.20
  4. Step 4: Simplify right side
    336.30x = 95,188.18
  5. Step 5: Solve for x
    x = 95,188.18/336.30
  6. Step 6: Final answer
    x = 283.05

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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.