Home / 319,249.20-478,873.80-177,531.60

Finding the Fourth Proportional to 319,249.20, 478,873.80 and 177,531.60

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Solution

The fourth proportional to 319,249.20, 478,873.80 and 177,531.60 is: 266,297.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,249.20 : 478,873.80 = 177,531.60 : x
  2. Step 2: Convert to fraction form
    319,249.20/478,873.80 = 177,531.60/x
  3. Step 3: Cross multiply
    319,249.20x = 478,873.80 × 177,531.60
  4. Step 4: Simplify right side
    319,249.20x = 85,015,231,912.08
  5. Step 5: Solve for x
    x = 85,015,231,912.08/319,249.20
  6. Step 6: Final answer
    x = 266,297.40

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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.