Home / 287,600.94-396,906.57-158,539.23

Finding the Fourth Proportional to 287,600.94, 396,906.57 and 158,539.23

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Solution

The fourth proportional to 287,600.94, 396,906.57 and 158,539.23 is: 218,793.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,600.94 : 396,906.57 = 158,539.23 : x
  2. Step 2: Convert to fraction form
    287,600.94/396,906.57 = 158,539.23/x
  3. Step 3: Cross multiply
    287,600.94x = 396,906.57 × 158,539.23
  4. Step 4: Simplify right side
    287,600.94x = 62,925,261,989.74
  5. Step 5: Solve for x
    x = 62,925,261,989.74/287,600.94
  6. Step 6: Final answer
    x = 218,793.66

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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.