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Finding the Fourth Proportional to 180.84, 270.02 and 161.40

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Solution

The fourth proportional to 180.84, 270.02 and 161.40 is: 240.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.84 : 270.02 = 161.40 : x
  2. Step 2: Convert to fraction form
    180.84/270.02 = 161.40/x
  3. Step 3: Cross multiply
    180.84x = 270.02 × 161.40
  4. Step 4: Simplify right side
    180.84x = 43,580.42
  5. Step 5: Solve for x
    x = 43,580.42/180.84
  6. Step 6: Final answer
    x = 240.99

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.