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Finding the Fourth Proportional to 206.10, 307.52 and 185.66

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Solution

The fourth proportional to 206.10, 307.52 and 185.66 is: 277.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    206.10 : 307.52 = 185.66 : x
  2. Step 2: Convert to fraction form
    206.10/307.52 = 185.66/x
  3. Step 3: Cross multiply
    206.10x = 307.52 × 185.66
  4. Step 4: Simplify right side
    206.10x = 57,094.16
  5. Step 5: Solve for x
    x = 57,094.16/206.10
  6. Step 6: Final answer
    x = 277.02

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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.