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Finding the Fourth Proportional to 326.07, 451.89 and 319.93

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Solution

The fourth proportional to 326.07, 451.89 and 319.93 is: 443.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    326.07 : 451.89 = 319.93 : x
  2. Step 2: Convert to fraction form
    326.07/451.89 = 319.93/x
  3. Step 3: Cross multiply
    326.07x = 451.89 × 319.93
  4. Step 4: Simplify right side
    326.07x = 144,572.04
  5. Step 5: Solve for x
    x = 144,572.04/326.07
  6. Step 6: Final answer
    x = 443.38

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.