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Finding the Fourth Proportional to 272.59, 376.18 and 148.26

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Solution

The fourth proportional to 272.59, 376.18 and 148.26 is: 204.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.59 : 376.18 = 148.26 : x
  2. Step 2: Convert to fraction form
    272.59/376.18 = 148.26/x
  3. Step 3: Cross multiply
    272.59x = 376.18 × 148.26
  4. Step 4: Simplify right side
    272.59x = 55,770.57
  5. Step 5: Solve for x
    x = 55,770.57/272.59
  6. Step 6: Final answer
    x = 204.60

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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.