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Finding the Fourth Proportional to 549.51, 822.24 and 508.61

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Solution

The fourth proportional to 549.51, 822.24 and 508.61 is: 761.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.51 : 822.24 = 508.61 : x
  2. Step 2: Convert to fraction form
    549.51/822.24 = 508.61/x
  3. Step 3: Cross multiply
    549.51x = 822.24 × 508.61
  4. Step 4: Simplify right side
    549.51x = 418,195.38
  5. Step 5: Solve for x
    x = 418,195.38/549.51
  6. Step 6: Final answer
    x = 761.03

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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.