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Finding the Fourth Proportional to 233.92, 320.74 and 229.06

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Solution

The fourth proportional to 233.92, 320.74 and 229.06 is: 314.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.92 : 320.74 = 229.06 : x
  2. Step 2: Convert to fraction form
    233.92/320.74 = 229.06/x
  3. Step 3: Cross multiply
    233.92x = 320.74 × 229.06
  4. Step 4: Simplify right side
    233.92x = 73,468.70
  5. Step 5: Solve for x
    x = 73,468.70/233.92
  6. Step 6: Final answer
    x = 314.08

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.