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Finding the Fourth Proportional to 234.10, 349.21 and 207.10

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Solution

The fourth proportional to 234.10, 349.21 and 207.10 is: 308.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.10 : 349.21 = 207.10 : x
  2. Step 2: Convert to fraction form
    234.10/349.21 = 207.10/x
  3. Step 3: Cross multiply
    234.10x = 349.21 × 207.10
  4. Step 4: Simplify right side
    234.10x = 72,320.36
  5. Step 5: Solve for x
    x = 72,320.36/234.10
  6. Step 6: Final answer
    x = 308.93

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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.