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Finding the Fourth Proportional to 564.06, 845.41 and 255.84

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Solution

The fourth proportional to 564.06, 845.41 and 255.84 is: 383.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    564.06 : 845.41 = 255.84 : x
  2. Step 2: Convert to fraction form
    564.06/845.41 = 255.84/x
  3. Step 3: Cross multiply
    564.06x = 845.41 × 255.84
  4. Step 4: Simplify right side
    564.06x = 216,289.69
  5. Step 5: Solve for x
    x = 216,289.69/564.06
  6. Step 6: Final answer
    x = 383.45

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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.