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Finding the Fourth Proportional to 184.77, 276.95 and 138.98

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Solution

The fourth proportional to 184.77, 276.95 and 138.98 is: 208.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.77 : 276.95 = 138.98 : x
  2. Step 2: Convert to fraction form
    184.77/276.95 = 138.98/x
  3. Step 3: Cross multiply
    184.77x = 276.95 × 138.98
  4. Step 4: Simplify right side
    184.77x = 38,488.43
  5. Step 5: Solve for x
    x = 38,488.43/184.77
  6. Step 6: Final answer
    x = 208.30

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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.