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Finding the Fourth Proportional to 352,049.92, 485,007.60 and 288,014.56

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Solution

The fourth proportional to 352,049.92, 485,007.60 and 288,014.56 is: 396,788.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,049.92 : 485,007.60 = 288,014.56 : x
  2. Step 2: Convert to fraction form
    352,049.92/485,007.60 = 288,014.56/x
  3. Step 3: Cross multiply
    352,049.92x = 485,007.60 × 288,014.56
  4. Step 4: Simplify right side
    352,049.92x = 139,689,250,510.66
  5. Step 5: Solve for x
    x = 139,689,250,510.66/352,049.92
  6. Step 6: Final answer
    x = 396,788.19

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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.