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Finding the Fourth Proportional to 322.99, 445.63 and 183.10

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Solution

The fourth proportional to 322.99, 445.63 and 183.10 is: 252.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.99 : 445.63 = 183.10 : x
  2. Step 2: Convert to fraction form
    322.99/445.63 = 183.10/x
  3. Step 3: Cross multiply
    322.99x = 445.63 × 183.10
  4. Step 4: Simplify right side
    322.99x = 81,595.20
  5. Step 5: Solve for x
    x = 81,595.20/322.99
  6. Step 6: Final answer
    x = 252.63

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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.