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Finding the Fourth Proportional to 234.90, 350.62 and 207.56

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Solution

The fourth proportional to 234.90, 350.62 and 207.56 is: 309.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.90 : 350.62 = 207.56 : x
  2. Step 2: Convert to fraction form
    234.90/350.62 = 207.56/x
  3. Step 3: Cross multiply
    234.90x = 350.62 × 207.56
  4. Step 4: Simplify right side
    234.90x = 72,774.69
  5. Step 5: Solve for x
    x = 72,774.69/234.90
  6. Step 6: Final answer
    x = 309.81

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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.