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Finding the Fourth Proportional to 325.96, 483.49 and 321.10

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Solution

The fourth proportional to 325.96, 483.49 and 321.10 is: 476.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.96 : 483.49 = 321.10 : x
  2. Step 2: Convert to fraction form
    325.96/483.49 = 321.10/x
  3. Step 3: Cross multiply
    325.96x = 483.49 × 321.10
  4. Step 4: Simplify right side
    325.96x = 155,248.64
  5. Step 5: Solve for x
    x = 155,248.64/325.96
  6. Step 6: Final answer
    x = 476.28

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.