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Finding the Fourth Proportional to 564.06, 846.40 and 321.06

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Solution

The fourth proportional to 564.06, 846.40 and 321.06 is: 481.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    564.06 : 846.40 = 321.06 : x
  2. Step 2: Convert to fraction form
    564.06/846.40 = 321.06/x
  3. Step 3: Cross multiply
    564.06x = 846.40 × 321.06
  4. Step 4: Simplify right side
    564.06x = 271,745.18
  5. Step 5: Solve for x
    x = 271,745.18/564.06
  6. Step 6: Final answer
    x = 481.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.