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Finding the Fourth Proportional to 548,825.25, 757,359.81 and 303,820.65

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Solution

The fourth proportional to 548,825.25, 757,359.81 and 303,820.65 is: 419,261.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,825.25 : 757,359.81 = 303,820.65 : x
  2. Step 2: Convert to fraction form
    548,825.25/757,359.81 = 303,820.65/x
  3. Step 3: Cross multiply
    548,825.25x = 757,359.81 × 303,820.65
  4. Step 4: Simplify right side
    548,825.25x = 230,101,549,758.08
  5. Step 5: Solve for x
    x = 230,101,549,758.08/548,825.25
  6. Step 6: Final answer
    x = 419,261.96

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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.