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Finding the Fourth Proportional to 636, 954.12 and 180

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Solution

The fourth proportional to 636, 954.12 and 180 is: 270.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    636 : 954.12 = 180 : x
  2. Step 2: Convert to fraction form
    636/954.12 = 180/x
  3. Step 3: Cross multiply
    636x = 954.12 × 180
  4. Step 4: Simplify right side
    636x = 171,741.60
  5. Step 5: Solve for x
    x = 171,741.60/636
  6. Step 6: Final answer
    x = 270.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.