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Finding the Fourth Proportional to 322.88, 484.37 and 192.98

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Solution

The fourth proportional to 322.88, 484.37 and 192.98 is: 289.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.88 : 484.37 = 192.98 : x
  2. Step 2: Convert to fraction form
    322.88/484.37 = 192.98/x
  3. Step 3: Cross multiply
    322.88x = 484.37 × 192.98
  4. Step 4: Simplify right side
    322.88x = 93,470.34
  5. Step 5: Solve for x
    x = 93,470.34/322.88
  6. Step 6: Final answer
    x = 289.49

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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.