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Finding the Fourth Proportional to 319.52, 440.95 and 179.63

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Solution

The fourth proportional to 319.52, 440.95 and 179.63 is: 247.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    319.52 : 440.95 = 179.63 : x
  2. Step 2: Convert to fraction form
    319.52/440.95 = 179.63/x
  3. Step 3: Cross multiply
    319.52x = 440.95 × 179.63
  4. Step 4: Simplify right side
    319.52x = 79,205.19
  5. Step 5: Solve for x
    x = 79,205.19/319.52
  6. Step 6: Final answer
    x = 247.89

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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.