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Finding the Third Proportional to 276,317.63 and 439,387.88

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Solution

The third proportional to 276,317.63 and 439,387.88 is: 698,694.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,317.63 : 439,387.88 = 439,387.88 : x
  2. Step 2: Convert to fraction form
    276,317.63/439,387.88 = 439,387.88/x
  3. Step 3: Cross multiply
    276,317.63x = 439,387.88 × 439,387.88
  4. Step 4: Simplify right side
    276,317.63x = 193,061,704,697.02
  5. Step 5: Solve for x
    x = 193,061,704,697.02/276,317.63
  6. Step 6: Final answer
    x = 698,694.86

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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.