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Finding the Fourth Proportional to 289.60, 399.23 and 179

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Solution

The fourth proportional to 289.60, 399.23 and 179 is: 246.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    289.60 : 399.23 = 179 : x
  2. Step 2: Convert to fraction form
    289.60/399.23 = 179/x
  3. Step 3: Cross multiply
    289.60x = 399.23 × 179
  4. Step 4: Simplify right side
    289.60x = 71,462.17
  5. Step 5: Solve for x
    x = 71,462.17/289.60
  6. Step 6: Final answer
    x = 246.76

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.