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Finding the Fourth Proportional to 397,010.25, 547,874.15 and 218,162.25

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Solution

The fourth proportional to 397,010.25, 547,874.15 and 218,162.25 is: 301,063.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,010.25 : 547,874.15 = 218,162.25 : x
  2. Step 2: Convert to fraction form
    397,010.25/547,874.15 = 218,162.25/x
  3. Step 3: Cross multiply
    397,010.25x = 547,874.15 × 218,162.25
  4. Step 4: Simplify right side
    397,010.25x = 119,525,456,190.03
  5. Step 5: Solve for x
    x = 119,525,456,190.03/397,010.25
  6. Step 6: Final answer
    x = 301,063.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.