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Finding the Fourth Proportional to 228,630.88, 342,873.61 and 213,704.80

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Solution

The fourth proportional to 228,630.88, 342,873.61 and 213,704.80 is: 320,489.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,630.88 : 342,873.61 = 213,704.80 : x
  2. Step 2: Convert to fraction form
    228,630.88/342,873.61 = 213,704.80/x
  3. Step 3: Cross multiply
    228,630.88x = 342,873.61 × 213,704.80
  4. Step 4: Simplify right side
    228,630.88x = 73,273,736,250.33
  5. Step 5: Solve for x
    x = 73,273,736,250.33/228,630.88
  6. Step 6: Final answer
    x = 320,489.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.