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Finding the Fourth Proportional to 398,810.22, 550,336.17 and 226,704.25

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Solution

The fourth proportional to 398,810.22, 550,336.17 and 226,704.25 is: 312,839.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,810.22 : 550,336.17 = 226,704.25 : x
  2. Step 2: Convert to fraction form
    398,810.22/550,336.17 = 226,704.25/x
  3. Step 3: Cross multiply
    398,810.22x = 550,336.17 × 226,704.25
  4. Step 4: Simplify right side
    398,810.22x = 124,763,548,667.72
  5. Step 5: Solve for x
    x = 124,763,548,667.72/398,810.22
  6. Step 6: Final answer
    x = 312,839.40

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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.