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Finding the Fourth Proportional to 270.98, 406.23 and 207.14

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Solution

The fourth proportional to 270.98, 406.23 and 207.14 is: 310.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.98 : 406.23 = 207.14 : x
  2. Step 2: Convert to fraction form
    270.98/406.23 = 207.14/x
  3. Step 3: Cross multiply
    270.98x = 406.23 × 207.14
  4. Step 4: Simplify right side
    270.98x = 84,146.48
  5. Step 5: Solve for x
    x = 84,146.48/270.98
  6. Step 6: Final answer
    x = 310.53

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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.