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Finding the Fourth Proportional to 568.64, 851.65 and 549.17

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Solution

The fourth proportional to 568.64, 851.65 and 549.17 is: 822.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.64 : 851.65 = 549.17 : x
  2. Step 2: Convert to fraction form
    568.64/851.65 = 549.17/x
  3. Step 3: Cross multiply
    568.64x = 851.65 × 549.17
  4. Step 4: Simplify right side
    568.64x = 467,698.19
  5. Step 5: Solve for x
    x = 467,698.19/568.64
  6. Step 6: Final answer
    x = 822.48

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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.