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Finding the Fourth Proportional to 322.48, 483.43 and 149.17

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Solution

The fourth proportional to 322.48, 483.43 and 149.17 is: 223.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.48 : 483.43 = 149.17 : x
  2. Step 2: Convert to fraction form
    322.48/483.43 = 149.17/x
  3. Step 3: Cross multiply
    322.48x = 483.43 × 149.17
  4. Step 4: Simplify right side
    322.48x = 72,113.25
  5. Step 5: Solve for x
    x = 72,113.25/322.48
  6. Step 6: Final answer
    x = 223.62

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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.