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Finding the Fourth Proportional to 228,906.56, 343,352.55 and 60,421.70

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Solution

The fourth proportional to 228,906.56, 343,352.55 and 60,421.70 is: 90,630.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,906.56 : 343,352.55 = 60,421.70 : x
  2. Step 2: Convert to fraction form
    228,906.56/343,352.55 = 60,421.70/x
  3. Step 3: Cross multiply
    228,906.56x = 343,352.55 × 60,421.70
  4. Step 4: Simplify right side
    228,906.56x = 20,745,944,770.34
  5. Step 5: Solve for x
    x = 20,745,944,770.34/228,906.56
  6. Step 6: Final answer
    x = 90,630.63

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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.