Home / 360,120.80-496,976.73-198,986.28

Finding the Fourth Proportional to 360,120.80, 496,976.73 and 198,986.28

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Solution

The fourth proportional to 360,120.80, 496,976.73 and 198,986.28 is: 274,606.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,120.80 : 496,976.73 = 198,986.28 : x
  2. Step 2: Convert to fraction form
    360,120.80/496,976.73 = 198,986.28/x
  3. Step 3: Cross multiply
    360,120.80x = 496,976.73 × 198,986.28
  4. Step 4: Simplify right side
    360,120.80x = 98,891,551,913.60
  5. Step 5: Solve for x
    x = 98,891,551,913.60/360,120.80
  6. Step 6: Final answer
    x = 274,606.61

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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.