Home / 305,960.20-422,165.46-178,641.16

Finding the Fourth Proportional to 305,960.20, 422,165.46 and 178,641.16

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Solution

The fourth proportional to 305,960.20, 422,165.46 and 178,641.16 is: 246,489.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,960.20 : 422,165.46 = 178,641.16 : x
  2. Step 2: Convert to fraction form
    305,960.20/422,165.46 = 178,641.16/x
  3. Step 3: Cross multiply
    305,960.20x = 422,165.46 × 178,641.16
  4. Step 4: Simplify right side
    305,960.20x = 75,416,127,486.33
  5. Step 5: Solve for x
    x = 75,416,127,486.33/305,960.20
  6. Step 6: Final answer
    x = 246,489.99

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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.