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Finding the Third Proportional to 338,698 and 498,690.50

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Solution

The third proportional to 338,698 and 498,690.50 is: 734,259.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,698 : 498,690.50 = 498,690.50 : x
  2. Step 2: Convert to fraction form
    338,698/498,690.50 = 498,690.50/x
  3. Step 3: Cross multiply
    338,698x = 498,690.50 × 498,690.50
  4. Step 4: Simplify right side
    338,698x = 248,692,214,790.25
  5. Step 5: Solve for x
    x = 248,692,214,790.25/338,698
  6. Step 6: Final answer
    x = 734,259.47

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.