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Finding the Fourth Proportional to 180.17, 270.46 and 72.04

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Solution

The fourth proportional to 180.17, 270.46 and 72.04 is: 108.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.17 : 270.46 = 72.04 : x
  2. Step 2: Convert to fraction form
    180.17/270.46 = 72.04/x
  3. Step 3: Cross multiply
    180.17x = 270.46 × 72.04
  4. Step 4: Simplify right side
    180.17x = 19,482.23
  5. Step 5: Solve for x
    x = 19,482.23/180.17
  6. Step 6: Final answer
    x = 108.13

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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.