Home / 285,480.08-428,280.24-107,983.20

Finding the Fourth Proportional to 285,480.08, 428,280.24 and 107,983.20

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Solution

The fourth proportional to 285,480.08, 428,280.24 and 107,983.20 is: 161,997.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,480.08 : 428,280.24 = 107,983.20 : x
  2. Step 2: Convert to fraction form
    285,480.08/428,280.24 = 107,983.20/x
  3. Step 3: Cross multiply
    285,480.08x = 428,280.24 × 107,983.20
  4. Step 4: Simplify right side
    285,480.08x = 46,247,070,811.97
  5. Step 5: Solve for x
    x = 46,247,070,811.97/285,480.08
  6. Step 6: Final answer
    x = 161,997.54

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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.