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Finding the Fourth Proportional to 352,025.50, 485,879.22 and 208,868.62

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Solution

The fourth proportional to 352,025.50, 485,879.22 and 208,868.62 is: 288,288.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,025.50 : 485,879.22 = 208,868.62 : x
  2. Step 2: Convert to fraction form
    352,025.50/485,879.22 = 208,868.62/x
  3. Step 3: Cross multiply
    352,025.50x = 485,879.22 × 208,868.62
  4. Step 4: Simplify right side
    352,025.50x = 101,484,922,168.08
  5. Step 5: Solve for x
    x = 101,484,922,168.08/352,025.50
  6. Step 6: Final answer
    x = 288,288.55

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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.