Home / 219,933.92-303,490.32-129,292.80

Finding the Fourth Proportional to 219,933.92, 303,490.32 and 129,292.80

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Solution

The fourth proportional to 219,933.92, 303,490.32 and 129,292.80 is: 178,413.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,933.92 : 303,490.32 = 129,292.80 : x
  2. Step 2: Convert to fraction form
    219,933.92/303,490.32 = 129,292.80/x
  3. Step 3: Cross multiply
    219,933.92x = 303,490.32 × 129,292.80
  4. Step 4: Simplify right side
    219,933.92x = 39,239,113,245.70
  5. Step 5: Solve for x
    x = 39,239,113,245.70/219,933.92
  6. Step 6: Final answer
    x = 178,413.19

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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.