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Finding the Fourth Proportional to 179.00, 268.43 and 55.58

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Solution

The fourth proportional to 179.00, 268.43 and 55.58 is: 83.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.00 : 268.43 = 55.58 : x
  2. Step 2: Convert to fraction form
    179.00/268.43 = 55.58/x
  3. Step 3: Cross multiply
    179.00x = 268.43 × 55.58
  4. Step 4: Simplify right side
    179.00x = 14,919.73
  5. Step 5: Solve for x
    x = 14,919.73/179.00
  6. Step 6: Final answer
    x = 83.35

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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.