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Finding the Third Proportional to 200,967 and 319,900.50

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Solution

The third proportional to 200,967 and 319,900.50 is: 509,219.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,967 : 319,900.50 = 319,900.50 : x
  2. Step 2: Convert to fraction form
    200,967/319,900.50 = 319,900.50/x
  3. Step 3: Cross multiply
    200,967x = 319,900.50 × 319,900.50
  4. Step 4: Simplify right side
    200,967x = 102,336,329,900.25
  5. Step 5: Solve for x
    x = 102,336,329,900.25/200,967
  6. Step 6: Final answer
    x = 509,219.57

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.