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Finding the Fourth Proportional to 321.06, 483.99 and 300.18

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Solution

The fourth proportional to 321.06, 483.99 and 300.18 is: 452.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    321.06 : 483.99 = 300.18 : x
  2. Step 2: Convert to fraction form
    321.06/483.99 = 300.18/x
  3. Step 3: Cross multiply
    321.06x = 483.99 × 300.18
  4. Step 4: Simplify right side
    321.06x = 145,284.12
  5. Step 5: Solve for x
    x = 145,284.12/321.06
  6. Step 6: Final answer
    x = 452.51

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.