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Finding the Fourth Proportional to 394,010.29, 543,760.67 and 219,607.63

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Solution

The fourth proportional to 394,010.29, 543,760.67 and 219,607.63 is: 303,073.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,010.29 : 543,760.67 = 219,607.63 : x
  2. Step 2: Convert to fraction form
    394,010.29/543,760.67 = 219,607.63/x
  3. Step 3: Cross multiply
    394,010.29x = 543,760.67 × 219,607.63
  4. Step 4: Simplify right side
    394,010.29x = 119,413,990,927.87
  5. Step 5: Solve for x
    x = 119,413,990,927.87/394,010.29
  6. Step 6: Final answer
    x = 303,073.28

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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.