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Finding the Third Proportional to 356,845.50 and 521,871.75

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Solution

The third proportional to 356,845.50 and 521,871.75 is: 763,215.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,845.50 : 521,871.75 = 521,871.75 : x
  2. Step 2: Convert to fraction form
    356,845.50/521,871.75 = 521,871.75/x
  3. Step 3: Cross multiply
    356,845.50x = 521,871.75 × 521,871.75
  4. Step 4: Simplify right side
    356,845.50x = 272,350,123,448.06
  5. Step 5: Solve for x
    x = 272,350,123,448.06/356,845.50
  6. Step 6: Final answer
    x = 763,215.80

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.