Home / 305,965.49-422,222.85-168,144.09

Finding the Fourth Proportional to 305,965.49, 422,222.85 and 168,144.09

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Solution

The fourth proportional to 305,965.49, 422,222.85 and 168,144.09 is: 232,033.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,965.49 : 422,222.85 = 168,144.09 : x
  2. Step 2: Convert to fraction form
    305,965.49/422,222.85 = 168,144.09/x
  3. Step 3: Cross multiply
    305,965.49x = 422,222.85 × 168,144.09
  4. Step 4: Simplify right side
    305,965.49x = 70,994,273,938.62
  5. Step 5: Solve for x
    x = 70,994,273,938.62/305,965.49
  6. Step 6: Final answer
    x = 232,033.60

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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.