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Finding the Fourth Proportional to 228,830.60, 343,245.90 and 194,270.60

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Solution

The fourth proportional to 228,830.60, 343,245.90 and 194,270.60 is: 291,405.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,830.60 : 343,245.90 = 194,270.60 : x
  2. Step 2: Convert to fraction form
    228,830.60/343,245.90 = 194,270.60/x
  3. Step 3: Cross multiply
    228,830.60x = 343,245.90 × 194,270.60
  4. Step 4: Simplify right side
    228,830.60x = 66,682,586,940.54
  5. Step 5: Solve for x
    x = 66,682,586,940.54/228,830.60
  6. Step 6: Final answer
    x = 291,405.90

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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.