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Finding the Fourth Proportional to 206.28, 307.91 and 175.62

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Solution

The fourth proportional to 206.28, 307.91 and 175.62 is: 262.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    206.28 : 307.91 = 175.62 : x
  2. Step 2: Convert to fraction form
    206.28/307.91 = 175.62/x
  3. Step 3: Cross multiply
    206.28x = 307.91 × 175.62
  4. Step 4: Simplify right side
    206.28x = 54,074.28
  5. Step 5: Solve for x
    x = 54,074.28/206.28
  6. Step 6: Final answer
    x = 262.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.