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Finding the Fourth Proportional to 184.69, 278.69 and 177.20

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Solution

The fourth proportional to 184.69, 278.69 and 177.20 is: 267.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.69 : 278.69 = 177.20 : x
  2. Step 2: Convert to fraction form
    184.69/278.69 = 177.20/x
  3. Step 3: Cross multiply
    184.69x = 278.69 × 177.20
  4. Step 4: Simplify right side
    184.69x = 49,383.87
  5. Step 5: Solve for x
    x = 49,383.87/184.69
  6. Step 6: Final answer
    x = 267.39

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.