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Finding the Fourth Proportional to 184.50, 278.33 and 178.74

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Solution

The fourth proportional to 184.50, 278.33 and 178.74 is: 269.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.50 : 278.33 = 178.74 : x
  2. Step 2: Convert to fraction form
    184.50/278.33 = 178.74/x
  3. Step 3: Cross multiply
    184.50x = 278.33 × 178.74
  4. Step 4: Simplify right side
    184.50x = 49,747.81
  5. Step 5: Solve for x
    x = 49,747.81/184.50
  6. Step 6: Final answer
    x = 269.64

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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.