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Finding the Fourth Proportional to 227.70, 341.55 and 207.45

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Solution

The fourth proportional to 227.70, 341.55 and 207.45 is: 311.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.70 : 341.55 = 207.45 : x
  2. Step 2: Convert to fraction form
    227.70/341.55 = 207.45/x
  3. Step 3: Cross multiply
    227.70x = 341.55 × 207.45
  4. Step 4: Simplify right side
    227.70x = 70,854.55
  5. Step 5: Solve for x
    x = 70,854.55/227.70
  6. Step 6: Final answer
    x = 311.18

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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.