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Finding the Fourth Proportional to 615.67, 927.66 and 549.35

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Solution

The fourth proportional to 615.67, 927.66 and 549.35 is: 827.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.67 : 927.66 = 549.35 : x
  2. Step 2: Convert to fraction form
    615.67/927.66 = 549.35/x
  3. Step 3: Cross multiply
    615.67x = 927.66 × 549.35
  4. Step 4: Simplify right side
    615.67x = 509,613.05
  5. Step 5: Solve for x
    x = 509,613.05/615.67
  6. Step 6: Final answer
    x = 827.73

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.