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Finding the Fourth Proportional to 192,489.08, 288,748.20 and 52,258.64

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Solution

The fourth proportional to 192,489.08, 288,748.20 and 52,258.64 is: 78,391.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,489.08 : 288,748.20 = 52,258.64 : x
  2. Step 2: Convert to fraction form
    192,489.08/288,748.20 = 52,258.64/x
  3. Step 3: Cross multiply
    192,489.08x = 288,748.20 × 52,258.64
  4. Step 4: Simplify right side
    192,489.08x = 15,089,588,234.45
  5. Step 5: Solve for x
    x = 15,089,588,234.45/192,489.08
  6. Step 6: Final answer
    x = 78,391.92

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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.