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Finding the Fourth Proportional to 336.18, 463.68 and 211.80

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Solution

The fourth proportional to 336.18, 463.68 and 211.80 is: 292.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.18 : 463.68 = 211.80 : x
  2. Step 2: Convert to fraction form
    336.18/463.68 = 211.80/x
  3. Step 3: Cross multiply
    336.18x = 463.68 × 211.80
  4. Step 4: Simplify right side
    336.18x = 98,207.42
  5. Step 5: Solve for x
    x = 98,207.42/336.18
  6. Step 6: Final answer
    x = 292.13

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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.