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Finding the Fourth Proportional to 272.90, 376.32 and 266.94

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Solution

The fourth proportional to 272.90, 376.32 and 266.94 is: 368.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.90 : 376.32 = 266.94 : x
  2. Step 2: Convert to fraction form
    272.90/376.32 = 266.94/x
  3. Step 3: Cross multiply
    272.90x = 376.32 × 266.94
  4. Step 4: Simplify right side
    272.90x = 100,454.86
  5. Step 5: Solve for x
    x = 100,454.86/272.90
  6. Step 6: Final answer
    x = 368.10

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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.