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Finding the Fourth Proportional to 233.33, 320.36 and 227.31

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Solution

The fourth proportional to 233.33, 320.36 and 227.31 is: 312.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.33 : 320.36 = 227.31 : x
  2. Step 2: Convert to fraction form
    233.33/320.36 = 227.31/x
  3. Step 3: Cross multiply
    233.33x = 320.36 × 227.31
  4. Step 4: Simplify right side
    233.33x = 72,818.69
  5. Step 5: Solve for x
    x = 72,818.69/233.33
  6. Step 6: Final answer
    x = 312.08

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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.