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Finding the Fourth Proportional to 206.40, 308.00 and 183.39

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Solution

The fourth proportional to 206.40, 308.00 and 183.39 is: 273.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    206.40 : 308.00 = 183.39 : x
  2. Step 2: Convert to fraction form
    206.40/308.00 = 183.39/x
  3. Step 3: Cross multiply
    206.40x = 308.00 × 183.39
  4. Step 4: Simplify right side
    206.40x = 56,484.29
  5. Step 5: Solve for x
    x = 56,484.29/206.40
  6. Step 6: Final answer
    x = 273.67

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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.