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Finding the Fourth Proportional to 568.88, 785.36 and 382.68

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Solution

The fourth proportional to 568.88, 785.36 and 382.68 is: 528.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.88 : 785.36 = 382.68 : x
  2. Step 2: Convert to fraction form
    568.88/785.36 = 382.68/x
  3. Step 3: Cross multiply
    568.88x = 785.36 × 382.68
  4. Step 4: Simplify right side
    568.88x = 300,541.56
  5. Step 5: Solve for x
    x = 300,541.56/568.88
  6. Step 6: Final answer
    x = 528.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.