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Finding the Third Proportional to 266,356.50 and 397,378.50

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Solution

The third proportional to 266,356.50 and 397,378.50 is: 592,850.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,356.50 : 397,378.50 = 397,378.50 : x
  2. Step 2: Convert to fraction form
    266,356.50/397,378.50 = 397,378.50/x
  3. Step 3: Cross multiply
    266,356.50x = 397,378.50 × 397,378.50
  4. Step 4: Simplify right side
    266,356.50x = 157,909,672,262.25
  5. Step 5: Solve for x
    x = 157,909,672,262.25/266,356.50
  6. Step 6: Final answer
    x = 592,850.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.