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Finding the Fourth Proportional to 564.07, 845.67 and 289.97

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Solution

The fourth proportional to 564.07, 845.67 and 289.97 is: 434.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    564.07 : 845.67 = 289.97 : x
  2. Step 2: Convert to fraction form
    564.07/845.67 = 289.97/x
  3. Step 3: Cross multiply
    564.07x = 845.67 × 289.97
  4. Step 4: Simplify right side
    564.07x = 245,218.93
  5. Step 5: Solve for x
    x = 245,218.93/564.07
  6. Step 6: Final answer
    x = 434.73

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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.