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Finding the Third Proportional to 281,578.50 and 612,729

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Solution

The third proportional to 281,578.50 and 612,729 is: 1,333,329.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,578.50 : 612,729 = 612,729 : x
  2. Step 2: Convert to fraction form
    281,578.50/612,729 = 612,729/x
  3. Step 3: Cross multiply
    281,578.50x = 612,729 × 612,729
  4. Step 4: Simplify right side
    281,578.50x = 375,436,827,441
  5. Step 5: Solve for x
    x = 375,436,827,441/281,578.50
  6. Step 6: Final answer
    x = 1,333,329.17

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.