Home / 305,919.88-422,122.55-169,941.33

Finding the Fourth Proportional to 305,919.88, 422,122.55 and 169,941.33

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Solution

The fourth proportional to 305,919.88, 422,122.55 and 169,941.33 is: 234,492.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,919.88 : 422,122.55 = 169,941.33 : x
  2. Step 2: Convert to fraction form
    305,919.88/422,122.55 = 169,941.33/x
  3. Step 3: Cross multiply
    305,919.88x = 422,122.55 × 169,941.33
  4. Step 4: Simplify right side
    305,919.88x = 71,736,067,994.84
  5. Step 5: Solve for x
    x = 71,736,067,994.84/305,919.88
  6. Step 6: Final answer
    x = 234,492.99

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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.