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Finding the Third Proportional to 504.98 and 681.96

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Solution

The third proportional to 504.98 and 681.96 is: 920.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.98 : 681.96 = 681.96 : x
  2. Step 2: Convert to fraction form
    504.98/681.96 = 681.96/x
  3. Step 3: Cross multiply
    504.98x = 681.96 × 681.96
  4. Step 4: Simplify right side
    504.98x = 465,070.72
  5. Step 5: Solve for x
    x = 465,070.72/504.98
  6. Step 6: Final answer
    x = 920.96

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.