Home / 352,120.80-528,176.40-115,471.20

Finding the Fourth Proportional to 352,120.80, 528,176.40 and 115,471.20

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Solution

The fourth proportional to 352,120.80, 528,176.40 and 115,471.20 is: 173,205.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,120.80 : 528,176.40 = 115,471.20 : x
  2. Step 2: Convert to fraction form
    352,120.80/528,176.40 = 115,471.20/x
  3. Step 3: Cross multiply
    352,120.80x = 528,176.40 × 115,471.20
  4. Step 4: Simplify right side
    352,120.80x = 60,989,162,719.68
  5. Step 5: Solve for x
    x = 60,989,162,719.68/352,120.80
  6. Step 6: Final answer
    x = 173,205.23

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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.