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Finding the Fourth Proportional to 564.68, 845.88 and 442.36

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Solution

The fourth proportional to 564.68, 845.88 and 442.36 is: 662.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    564.68 : 845.88 = 442.36 : x
  2. Step 2: Convert to fraction form
    564.68/845.88 = 442.36/x
  3. Step 3: Cross multiply
    564.68x = 845.88 × 442.36
  4. Step 4: Simplify right side
    564.68x = 374,183.48
  5. Step 5: Solve for x
    x = 374,183.48/564.68
  6. Step 6: Final answer
    x = 662.65

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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.