Home / 287,198.10-396,370.62-164,738.34

Finding the Fourth Proportional to 287,198.10, 396,370.62 and 164,738.34

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Solution

The fourth proportional to 287,198.10, 396,370.62 and 164,738.34 is: 227,360.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,198.10 : 396,370.62 = 164,738.34 : x
  2. Step 2: Convert to fraction form
    287,198.10/396,370.62 = 164,738.34/x
  3. Step 3: Cross multiply
    287,198.10x = 396,370.62 × 164,738.34
  4. Step 4: Simplify right side
    287,198.10x = 65,297,437,963.57
  5. Step 5: Solve for x
    x = 65,297,437,963.57/287,198.10
  6. Step 6: Final answer
    x = 227,360.27

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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.