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Finding the Fourth Proportional to 206.01, 309.01 and 61.73

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Solution

The fourth proportional to 206.01, 309.01 and 61.73 is: 92.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    206.01 : 309.01 = 61.73 : x
  2. Step 2: Convert to fraction form
    206.01/309.01 = 61.73/x
  3. Step 3: Cross multiply
    206.01x = 309.01 × 61.73
  4. Step 4: Simplify right side
    206.01x = 19,075.19
  5. Step 5: Solve for x
    x = 19,075.19/206.01
  6. Step 6: Final answer
    x = 92.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.