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Finding the Fourth Proportional to 326.61, 447.50 and 322.27

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Solution

The fourth proportional to 326.61, 447.50 and 322.27 is: 441.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    326.61 : 447.50 = 322.27 : x
  2. Step 2: Convert to fraction form
    326.61/447.50 = 322.27/x
  3. Step 3: Cross multiply
    326.61x = 447.50 × 322.27
  4. Step 4: Simplify right side
    326.61x = 144,215.51
  5. Step 5: Solve for x
    x = 144,215.51/326.61
  6. Step 6: Final answer
    x = 441.55

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.