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Finding the Fourth Proportional to 319.32, 479.22 and 233.88

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Solution

The fourth proportional to 319.32, 479.22 and 233.88 is: 351.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    319.32 : 479.22 = 233.88 : x
  2. Step 2: Convert to fraction form
    319.32/479.22 = 233.88/x
  3. Step 3: Cross multiply
    319.32x = 479.22 × 233.88
  4. Step 4: Simplify right side
    319.32x = 112,079.97
  5. Step 5: Solve for x
    x = 112,079.97/319.32
  6. Step 6: Final answer
    x = 351.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.