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Finding the Fourth Proportional to 307.80, 461.80 and 184.39

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Solution

The fourth proportional to 307.80, 461.80 and 184.39 is: 276.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    307.80 : 461.80 = 184.39 : x
  2. Step 2: Convert to fraction form
    307.80/461.80 = 184.39/x
  3. Step 3: Cross multiply
    307.80x = 461.80 × 184.39
  4. Step 4: Simplify right side
    307.80x = 85,150.38
  5. Step 5: Solve for x
    x = 85,150.38/307.80
  6. Step 6: Final answer
    x = 276.64

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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.