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Finding the Fourth Proportional to 568.49, 851.64 and 476.09

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Solution

The fourth proportional to 568.49, 851.64 and 476.09 is: 713.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.49 : 851.64 = 476.09 : x
  2. Step 2: Convert to fraction form
    568.49/851.64 = 476.09/x
  3. Step 3: Cross multiply
    568.49x = 851.64 × 476.09
  4. Step 4: Simplify right side
    568.49x = 405,457.29
  5. Step 5: Solve for x
    x = 405,457.29/568.49
  6. Step 6: Final answer
    x = 713.22

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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.