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Finding the Fourth Proportional to 351,636.92, 485,260.20 and 190,491.56

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Solution

The fourth proportional to 351,636.92, 485,260.20 and 190,491.56 is: 262,879.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,636.92 : 485,260.20 = 190,491.56 : x
  2. Step 2: Convert to fraction form
    351,636.92/485,260.20 = 190,491.56/x
  3. Step 3: Cross multiply
    351,636.92x = 485,260.20 × 190,491.56
  4. Step 4: Simplify right side
    351,636.92x = 92,437,972,503.91
  5. Step 5: Solve for x
    x = 92,437,972,503.91/351,636.92
  6. Step 6: Final answer
    x = 262,879.03

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1.5x scale

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.