Home / 278,196.44-383,846.78-187,720.25

Finding the Fourth Proportional to 278,196.44, 383,846.78 and 187,720.25

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Solution

The fourth proportional to 278,196.44, 383,846.78 and 187,720.25 is: 259,010.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,196.44 : 383,846.78 = 187,720.25 : x
  2. Step 2: Convert to fraction form
    278,196.44/383,846.78 = 187,720.25/x
  3. Step 3: Cross multiply
    278,196.44x = 383,846.78 × 187,720.25
  4. Step 4: Simplify right side
    278,196.44x = 72,055,812,053.36
  5. Step 5: Solve for x
    x = 72,055,812,053.36/278,196.44
  6. Step 6: Final answer
    x = 259,010.55

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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.