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Finding the Fourth Proportional to 179.02, 246.88 and 155.69

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Solution

The fourth proportional to 179.02, 246.88 and 155.69 is: 214.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.02 : 246.88 = 155.69 : x
  2. Step 2: Convert to fraction form
    179.02/246.88 = 155.69/x
  3. Step 3: Cross multiply
    179.02x = 246.88 × 155.69
  4. Step 4: Simplify right side
    179.02x = 38,436.75
  5. Step 5: Solve for x
    x = 38,436.75/179.02
  6. Step 6: Final answer
    x = 214.71

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Why These Related Problems?

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