Home / 281,550.75-388,546.31-160,689.61

Finding the Fourth Proportional to 281,550.75, 388,546.31 and 160,689.61

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Solution

The fourth proportional to 281,550.75, 388,546.31 and 160,689.61 is: 221,755.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,550.75 : 388,546.31 = 160,689.61 : x
  2. Step 2: Convert to fraction form
    281,550.75/388,546.31 = 160,689.61/x
  3. Step 3: Cross multiply
    281,550.75x = 388,546.31 × 160,689.61
  4. Step 4: Simplify right side
    281,550.75x = 62,435,355,020.84
  5. Step 5: Solve for x
    x = 62,435,355,020.84/281,550.75
  6. Step 6: Final answer
    x = 221,755.24

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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.