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Finding the Fourth Proportional to 564.08, 844.61 and 290.25

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Solution

The fourth proportional to 564.08, 844.61 and 290.25 is: 434.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    564.08 : 844.61 = 290.25 : x
  2. Step 2: Convert to fraction form
    564.08/844.61 = 290.25/x
  3. Step 3: Cross multiply
    564.08x = 844.61 × 290.25
  4. Step 4: Simplify right side
    564.08x = 245,146.60
  5. Step 5: Solve for x
    x = 245,146.60/564.08
  6. Step 6: Final answer
    x = 434.60

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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.