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Finding the Fourth Proportional to 325.02, 450.41 and 318.87

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Solution

The fourth proportional to 325.02, 450.41 and 318.87 is: 441.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.02 : 450.41 = 318.87 : x
  2. Step 2: Convert to fraction form
    325.02/450.41 = 318.87/x
  3. Step 3: Cross multiply
    325.02x = 450.41 × 318.87
  4. Step 4: Simplify right side
    325.02x = 143,622.79
  5. Step 5: Solve for x
    x = 143,622.79/325.02
  6. Step 6: Final answer
    x = 441.89

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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.