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Finding the Fourth Proportional to 277.31, 412.23 and 269.12

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Solution

The fourth proportional to 277.31, 412.23 and 269.12 is: 400.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.31 : 412.23 = 269.12 : x
  2. Step 2: Convert to fraction form
    277.31/412.23 = 269.12/x
  3. Step 3: Cross multiply
    277.31x = 412.23 × 269.12
  4. Step 4: Simplify right side
    277.31x = 110,937.28
  5. Step 5: Solve for x
    x = 110,937.28/277.31
  6. Step 6: Final answer
    x = 400.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.