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Finding the Fourth Proportional to 175,287.92, 262,940.60 and 85,413.20

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Solution

The fourth proportional to 175,287.92, 262,940.60 and 85,413.20 is: 128,124.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,287.92 : 262,940.60 = 85,413.20 : x
  2. Step 2: Convert to fraction form
    175,287.92/262,940.60 = 85,413.20/x
  3. Step 3: Cross multiply
    175,287.92x = 262,940.60 × 85,413.20
  4. Step 4: Simplify right side
    175,287.92x = 22,458,596,954.75
  5. Step 5: Solve for x
    x = 22,458,596,954.75/175,287.92
  6. Step 6: Final answer
    x = 128,124.05

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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.