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Finding the Fourth Proportional to 548,215.43, 756,532.31 and 303,200.15

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Solution

The fourth proportional to 548,215.43, 756,532.31 and 303,200.15 is: 418,413.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,215.43 : 756,532.31 = 303,200.15 : x
  2. Step 2: Convert to fraction form
    548,215.43/756,532.31 = 303,200.15/x
  3. Step 3: Cross multiply
    548,215.43x = 756,532.31 × 303,200.15
  4. Step 4: Simplify right side
    548,215.43x = 229,380,704,573.18
  5. Step 5: Solve for x
    x = 229,380,704,573.18/548,215.43
  6. Step 6: Final answer
    x = 418,413.44

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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.