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Finding the Third Proportional to 231,579 and 346,390.50

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Solution

The third proportional to 231,579 and 346,390.50 is: 518,122.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,579 : 346,390.50 = 346,390.50 : x
  2. Step 2: Convert to fraction form
    231,579/346,390.50 = 346,390.50/x
  3. Step 3: Cross multiply
    231,579x = 346,390.50 × 346,390.50
  4. Step 4: Simplify right side
    231,579x = 119,986,378,490.25
  5. Step 5: Solve for x
    x = 119,986,378,490.25/231,579
  6. Step 6: Final answer
    x = 518,122.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.