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Finding the Fourth Proportional to 179.87, 247.79 and 146.93

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Solution

The fourth proportional to 179.87, 247.79 and 146.93 is: 202.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.87 : 247.79 = 146.93 : x
  2. Step 2: Convert to fraction form
    179.87/247.79 = 146.93/x
  3. Step 3: Cross multiply
    179.87x = 247.79 × 146.93
  4. Step 4: Simplify right side
    179.87x = 36,406.91
  5. Step 5: Solve for x
    x = 36,406.91/179.87
  6. Step 6: Final answer
    x = 202.41

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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.