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Finding the Fourth Proportional to 305,997.56, 422,155.63 and 176,912.32

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Solution

The fourth proportional to 305,997.56, 422,155.63 and 176,912.32 is: 244,069.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,997.56 : 422,155.63 = 176,912.32 : x
  2. Step 2: Convert to fraction form
    305,997.56/422,155.63 = 176,912.32/x
  3. Step 3: Cross multiply
    305,997.56x = 422,155.63 × 176,912.32
  4. Step 4: Simplify right side
    305,997.56x = 74,684,531,904.36
  5. Step 5: Solve for x
    x = 74,684,531,904.36/305,997.56
  6. Step 6: Final answer
    x = 244,069.04

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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.