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Finding the Fourth Proportional to 184.57, 276.58 and 103.30

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Solution

The fourth proportional to 184.57, 276.58 and 103.30 is: 154.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.57 : 276.58 = 103.30 : x
  2. Step 2: Convert to fraction form
    184.57/276.58 = 103.30/x
  3. Step 3: Cross multiply
    184.57x = 276.58 × 103.30
  4. Step 4: Simplify right side
    184.57x = 28,570.71
  5. Step 5: Solve for x
    x = 28,570.71/184.57
  6. Step 6: Final answer
    x = 154.80

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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.