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Finding the Fourth Proportional to 325.51, 450.44 and 281.77

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Solution

The fourth proportional to 325.51, 450.44 and 281.77 is: 389.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.51 : 450.44 = 281.77 : x
  2. Step 2: Convert to fraction form
    325.51/450.44 = 281.77/x
  3. Step 3: Cross multiply
    325.51x = 450.44 × 281.77
  4. Step 4: Simplify right side
    325.51x = 126,920.48
  5. Step 5: Solve for x
    x = 126,920.48/325.51
  6. Step 6: Final answer
    x = 389.91

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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.