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Finding the Fourth Proportional to 179.04, 247.04 and 105.38

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Solution

The fourth proportional to 179.04, 247.04 and 105.38 is: 145.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.04 : 247.04 = 105.38 : x
  2. Step 2: Convert to fraction form
    179.04/247.04 = 105.38/x
  3. Step 3: Cross multiply
    179.04x = 247.04 × 105.38
  4. Step 4: Simplify right side
    179.04x = 26,033.08
  5. Step 5: Solve for x
    x = 26,033.08/179.04
  6. Step 6: Final answer
    x = 145.40

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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.