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Finding the Fourth Proportional to 179.12, 247.19 and 130.07

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Solution

The fourth proportional to 179.12, 247.19 and 130.07 is: 179.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.12 : 247.19 = 130.07 : x
  2. Step 2: Convert to fraction form
    179.12/247.19 = 130.07/x
  3. Step 3: Cross multiply
    179.12x = 247.19 × 130.07
  4. Step 4: Simplify right side
    179.12x = 32,150.12
  5. Step 5: Solve for x
    x = 32,150.12/179.12
  6. Step 6: Final answer
    x = 179.49

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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.