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Finding the Fourth Proportional to 287,217.98, 396,102.78 and 179,797.80

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Solution

The fourth proportional to 287,217.98, 396,102.78 and 179,797.80 is: 247,959.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,217.98 : 396,102.78 = 179,797.80 : x
  2. Step 2: Convert to fraction form
    287,217.98/396,102.78 = 179,797.80/x
  3. Step 3: Cross multiply
    287,217.98x = 396,102.78 × 179,797.80
  4. Step 4: Simplify right side
    287,217.98x = 71,218,408,417.88
  5. Step 5: Solve for x
    x = 71,218,408,417.88/287,217.98
  6. Step 6: Final answer
    x = 247,959.44

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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.