Home / 398,288.16-597,202.20-131,976.90

Finding the Fourth Proportional to 398,288.16, 597,202.20 and 131,976.90

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Solution

The fourth proportional to 398,288.16, 597,202.20 and 131,976.90 is: 197,889.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,288.16 : 597,202.20 = 131,976.90 : x
  2. Step 2: Convert to fraction form
    398,288.16/597,202.20 = 131,976.90/x
  3. Step 3: Cross multiply
    398,288.16x = 597,202.20 × 131,976.90
  4. Step 4: Simplify right side
    398,288.16x = 78,816,895,029.18
  5. Step 5: Solve for x
    x = 78,816,895,029.18/398,288.16
  6. Step 6: Final answer
    x = 197,889.12

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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.