Home / 306,040.32-422,375.04-171,930.24

Finding the Fourth Proportional to 306,040.32, 422,375.04 and 171,930.24

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Solution

The fourth proportional to 306,040.32, 422,375.04 and 171,930.24 is: 237,285.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,040.32 : 422,375.04 = 171,930.24 : x
  2. Step 2: Convert to fraction form
    306,040.32/422,375.04 = 171,930.24/x
  3. Step 3: Cross multiply
    306,040.32x = 422,375.04 × 171,930.24
  4. Step 4: Simplify right side
    306,040.32x = 72,619,041,997.21
  5. Step 5: Solve for x
    x = 72,619,041,997.21/306,040.32
  6. Step 6: Final answer
    x = 237,285.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.