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Finding the Fourth Proportional to 548,168.61, 756,469.20 and 306,450.03

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Solution

The fourth proportional to 548,168.61, 756,469.20 and 306,450.03 is: 422,899.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,168.61 : 756,469.20 = 306,450.03 : x
  2. Step 2: Convert to fraction form
    548,168.61/756,469.20 = 306,450.03/x
  3. Step 3: Cross multiply
    548,168.61x = 756,469.20 × 306,450.03
  4. Step 4: Simplify right side
    548,168.61x = 231,820,009,034.08
  5. Step 5: Solve for x
    x = 231,820,009,034.08/548,168.61
  6. Step 6: Final answer
    x = 422,899.09

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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.