Home / 305,899.12-422,152.60-169,943.28

Finding the Fourth Proportional to 305,899.12, 422,152.60 and 169,943.28

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Solution

The fourth proportional to 305,899.12, 422,152.60 and 169,943.28 is: 234,528.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,899.12 : 422,152.60 = 169,943.28 : x
  2. Step 2: Convert to fraction form
    305,899.12/422,152.60 = 169,943.28/x
  3. Step 3: Cross multiply
    305,899.12x = 422,152.60 × 169,943.28
  4. Step 4: Simplify right side
    305,899.12x = 71,741,997,504.53
  5. Step 5: Solve for x
    x = 71,741,997,504.53/305,899.12
  6. Step 6: Final answer
    x = 234,528.29

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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.