Home / 258,819.54-388,229.32-118,578.18

Finding the Fourth Proportional to 258,819.54, 388,229.32 and 118,578.18

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Solution

The fourth proportional to 258,819.54, 388,229.32 and 118,578.18 is: 177,867.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,819.54 : 388,229.32 = 118,578.18 : x
  2. Step 2: Convert to fraction form
    258,819.54/388,229.32 = 118,578.18/x
  3. Step 3: Cross multiply
    258,819.54x = 388,229.32 × 118,578.18
  4. Step 4: Simplify right side
    258,819.54x = 46,035,526,188.24
  5. Step 5: Solve for x
    x = 46,035,526,188.24/258,819.54
  6. Step 6: Final answer
    x = 177,867.27

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Similar ratio
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1.5x scale

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.