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Finding the Fourth Proportional to 305,893.48, 422,200.42 and 169,974.04

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Solution

The fourth proportional to 305,893.48, 422,200.42 and 169,974.04 is: 234,601.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,893.48 : 422,200.42 = 169,974.04 : x
  2. Step 2: Convert to fraction form
    305,893.48/422,200.42 = 169,974.04/x
  3. Step 3: Cross multiply
    305,893.48x = 422,200.42 × 169,974.04
  4. Step 4: Simplify right side
    305,893.48x = 71,763,111,077.10
  5. Step 5: Solve for x
    x = 71,763,111,077.10/305,893.48
  6. Step 6: Final answer
    x = 234,601.64

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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.