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Finding the Fourth Proportional to 547,951.80, 756,122.94 and 306,200.64

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Solution

The fourth proportional to 547,951.80, 756,122.94 and 306,200.64 is: 422,528.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,951.80 : 756,122.94 = 306,200.64 : x
  2. Step 2: Convert to fraction form
    547,951.80/756,122.94 = 306,200.64/x
  3. Step 3: Cross multiply
    547,951.80x = 756,122.94 × 306,200.64
  4. Step 4: Simplify right side
    547,951.80x = 231,525,328,146.68
  5. Step 5: Solve for x
    x = 231,525,328,146.68/547,951.80
  6. Step 6: Final answer
    x = 422,528.64

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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.