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Finding the Fourth Proportional to 184.47, 276.53 and 143.79

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Solution

The fourth proportional to 184.47, 276.53 and 143.79 is: 215.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.47 : 276.53 = 143.79 : x
  2. Step 2: Convert to fraction form
    184.47/276.53 = 143.79/x
  3. Step 3: Cross multiply
    184.47x = 276.53 × 143.79
  4. Step 4: Simplify right side
    184.47x = 39,761.53
  5. Step 5: Solve for x
    x = 39,761.53/184.47
  6. Step 6: Final answer
    x = 215.54

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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.