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Finding the Fourth Proportional to 234.19, 349.54 and 207.16

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Solution

The fourth proportional to 234.19, 349.54 and 207.16 is: 309.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.19 : 349.54 = 207.16 : x
  2. Step 2: Convert to fraction form
    234.19/349.54 = 207.16/x
  3. Step 3: Cross multiply
    234.19x = 349.54 × 207.16
  4. Step 4: Simplify right side
    234.19x = 72,409.90
  5. Step 5: Solve for x
    x = 72,409.90/234.19
  6. Step 6: Final answer
    x = 309.19

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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.