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Finding the Fourth Proportional to 322.08, 483.06 and 90.92

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Solution

The fourth proportional to 322.08, 483.06 and 90.92 is: 136.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.08 : 483.06 = 90.92 : x
  2. Step 2: Convert to fraction form
    322.08/483.06 = 90.92/x
  3. Step 3: Cross multiply
    322.08x = 483.06 × 90.92
  4. Step 4: Simplify right side
    322.08x = 43,921.36
  5. Step 5: Solve for x
    x = 43,921.36/322.08
  6. Step 6: Final answer
    x = 136.37

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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.