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Finding the Fourth Proportional to 568.42, 851.63 and 508.66

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Solution

The fourth proportional to 568.42, 851.63 and 508.66 is: 762.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.42 : 851.63 = 508.66 : x
  2. Step 2: Convert to fraction form
    568.42/851.63 = 508.66/x
  3. Step 3: Cross multiply
    568.42x = 851.63 × 508.66
  4. Step 4: Simplify right side
    568.42x = 433,190.12
  5. Step 5: Solve for x
    x = 433,190.12/568.42
  6. Step 6: Final answer
    x = 762.10

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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.