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Finding the Third Proportional to 143,339.63 and 303,753.80

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Solution

The third proportional to 143,339.63 and 303,753.80 is: 643,690.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,339.63 : 303,753.80 = 303,753.80 : x
  2. Step 2: Convert to fraction form
    143,339.63/303,753.80 = 303,753.80/x
  3. Step 3: Cross multiply
    143,339.63x = 303,753.80 × 303,753.80
  4. Step 4: Simplify right side
    143,339.63x = 92,266,369,115.98
  5. Step 5: Solve for x
    x = 92,266,369,115.98/143,339.63
  6. Step 6: Final answer
    x = 643,690.60

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.