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Finding the Fourth Proportional to 234.00, 322.94 and 129.10

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Solution

The fourth proportional to 234.00, 322.94 and 129.10 is: 178.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.00 : 322.94 = 129.10 : x
  2. Step 2: Convert to fraction form
    234.00/322.94 = 129.10/x
  3. Step 3: Cross multiply
    234.00x = 322.94 × 129.10
  4. Step 4: Simplify right side
    234.00x = 41,692.31
  5. Step 5: Solve for x
    x = 41,692.31/234.00
  6. Step 6: Final answer
    x = 178.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.