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Finding the Fourth Proportional to 443,879.50, 612,578.25 and 252,856.30

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Solution

The fourth proportional to 443,879.50, 612,578.25 and 252,856.30 is: 348,955.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,879.50 : 612,578.25 = 252,856.30 : x
  2. Step 2: Convert to fraction form
    443,879.50/612,578.25 = 252,856.30/x
  3. Step 3: Cross multiply
    443,879.50x = 612,578.25 × 252,856.30
  4. Step 4: Simplify right side
    443,879.50x = 154,894,269,755.48
  5. Step 5: Solve for x
    x = 154,894,269,755.48/443,879.50
  6. Step 6: Final answer
    x = 348,955.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.