Home / 305,890.28-422,116.83-169,932.77

Finding the Fourth Proportional to 305,890.28, 422,116.83 and 169,932.77

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Solution

The fourth proportional to 305,890.28, 422,116.83 and 169,932.77 is: 234,500.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,890.28 : 422,116.83 = 169,932.77 : x
  2. Step 2: Convert to fraction form
    305,890.28/422,116.83 = 169,932.77/x
  3. Step 3: Cross multiply
    305,890.28x = 422,116.83 × 169,932.77
  4. Step 4: Simplify right side
    305,890.28x = 71,731,480,074.94
  5. Step 5: Solve for x
    x = 71,731,480,074.94/305,890.28
  6. Step 6: Final answer
    x = 234,500.69

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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.