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Finding the Fourth Proportional to 206.34, 284.73 and 113.08

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Solution

The fourth proportional to 206.34, 284.73 and 113.08 is: 156.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    206.34 : 284.73 = 113.08 : x
  2. Step 2: Convert to fraction form
    206.34/284.73 = 113.08/x
  3. Step 3: Cross multiply
    206.34x = 284.73 × 113.08
  4. Step 4: Simplify right side
    206.34x = 32,197.27
  5. Step 5: Solve for x
    x = 32,197.27/206.34
  6. Step 6: Final answer
    x = 156.04

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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.