Home / 305,249.33-421,265.52-169,296.23

Finding the Fourth Proportional to 305,249.33, 421,265.52 and 169,296.23

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Solution

The fourth proportional to 305,249.33, 421,265.52 and 169,296.23 is: 233,640.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,249.33 : 421,265.52 = 169,296.23 : x
  2. Step 2: Convert to fraction form
    305,249.33/421,265.52 = 169,296.23/x
  3. Step 3: Cross multiply
    305,249.33x = 421,265.52 × 169,296.23
  4. Step 4: Simplify right side
    305,249.33x = 71,318,662,258.66
  5. Step 5: Solve for x
    x = 71,318,662,258.66/305,249.33
  6. Step 6: Final answer
    x = 233,640.69

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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.