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Finding the Fourth Proportional to 180.12, 245.13 and 179.21

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Solution

The fourth proportional to 180.12, 245.13 and 179.21 is: 243.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.12 : 245.13 = 179.21 : x
  2. Step 2: Convert to fraction form
    180.12/245.13 = 179.21/x
  3. Step 3: Cross multiply
    180.12x = 245.13 × 179.21
  4. Step 4: Simplify right side
    180.12x = 43,929.69
  5. Step 5: Solve for x
    x = 43,929.69/180.12
  6. Step 6: Final answer
    x = 243.89

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.