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Finding the Third Proportional to 312,018.75 and 479,692.13

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Solution

The third proportional to 312,018.75 and 479,692.13 is: 737,470.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,018.75 : 479,692.13 = 479,692.13 : x
  2. Step 2: Convert to fraction form
    312,018.75/479,692.13 = 479,692.13/x
  3. Step 3: Cross multiply
    312,018.75x = 479,692.13 × 479,692.13
  4. Step 4: Simplify right side
    312,018.75x = 230,104,534,787.02
  5. Step 5: Solve for x
    x = 230,104,534,787.02/312,018.75
  6. Step 6: Final answer
    x = 737,470.22

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.