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Finding the Fourth Proportional to 232.51, 320.89 and 134.28

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Solution

The fourth proportional to 232.51, 320.89 and 134.28 is: 185.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    232.51 : 320.89 = 134.28 : x
  2. Step 2: Convert to fraction form
    232.51/320.89 = 134.28/x
  3. Step 3: Cross multiply
    232.51x = 320.89 × 134.28
  4. Step 4: Simplify right side
    232.51x = 43,089.11
  5. Step 5: Solve for x
    x = 43,089.11/232.51
  6. Step 6: Final answer
    x = 185.32

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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.