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Finding the Fourth Proportional to 228,857.60, 343,286.40 and 194,297.60

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Solution

The fourth proportional to 228,857.60, 343,286.40 and 194,297.60 is: 291,446.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,857.60 : 343,286.40 = 194,297.60 : x
  2. Step 2: Convert to fraction form
    228,857.60/343,286.40 = 194,297.60/x
  3. Step 3: Cross multiply
    228,857.60x = 343,286.40 × 194,297.60
  4. Step 4: Simplify right side
    228,857.60x = 66,699,723,632.64
  5. Step 5: Solve for x
    x = 66,699,723,632.64/228,857.60
  6. Step 6: Final answer
    x = 291,446.40

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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.