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Finding the Fourth Proportional to 227.04, 312.48 and 194.16

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Solution

The fourth proportional to 227.04, 312.48 and 194.16 is: 267.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.04 : 312.48 = 194.16 : x
  2. Step 2: Convert to fraction form
    227.04/312.48 = 194.16/x
  3. Step 3: Cross multiply
    227.04x = 312.48 × 194.16
  4. Step 4: Simplify right side
    227.04x = 60,671.12
  5. Step 5: Solve for x
    x = 60,671.12/227.04
  6. Step 6: Final answer
    x = 267.23

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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.