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Finding the Fourth Proportional to 401.07, 601.71 and 227.87

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Solution

The fourth proportional to 401.07, 601.71 and 227.87 is: 341.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    401.07 : 601.71 = 227.87 : x
  2. Step 2: Convert to fraction form
    401.07/601.71 = 227.87/x
  3. Step 3: Cross multiply
    401.07x = 601.71 × 227.87
  4. Step 4: Simplify right side
    401.07x = 137,111.66
  5. Step 5: Solve for x
    x = 137,111.66/401.07
  6. Step 6: Final answer
    x = 341.86

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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.