Home / 319,620.20-479,430.30-179,360.60

Finding the Fourth Proportional to 319,620.20, 479,430.30 and 179,360.60

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Solution

The fourth proportional to 319,620.20, 479,430.30 and 179,360.60 is: 269,040.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,620.20 : 479,430.30 = 179,360.60 : x
  2. Step 2: Convert to fraction form
    319,620.20/479,430.30 = 179,360.60/x
  3. Step 3: Cross multiply
    319,620.20x = 479,430.30 × 179,360.60
  4. Step 4: Simplify right side
    319,620.20x = 85,990,906,266.18
  5. Step 5: Solve for x
    x = 85,990,906,266.18/319,620.20
  6. Step 6: Final answer
    x = 269,040.90

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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.