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Finding the Fourth Proportional to 228,359.50, 342,445.61 and 68,379.08

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Solution

The fourth proportional to 228,359.50, 342,445.61 and 68,379.08 is: 102,540.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,359.50 : 342,445.61 = 68,379.08 : x
  2. Step 2: Convert to fraction form
    228,359.50/342,445.61 = 68,379.08/x
  3. Step 3: Cross multiply
    228,359.50x = 342,445.61 × 68,379.08
  4. Step 4: Simplify right side
    228,359.50x = 23,416,114,220.56
  5. Step 5: Solve for x
    x = 23,416,114,220.56/228,359.50
  6. Step 6: Final answer
    x = 102,540.58

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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.