Home / 209,252.20-313,878.30-68,992.60

Finding the Fourth Proportional to 209,252.20, 313,878.30 and 68,992.60

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Solution

The fourth proportional to 209,252.20, 313,878.30 and 68,992.60 is: 103,488.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,252.20 : 313,878.30 = 68,992.60 : x
  2. Step 2: Convert to fraction form
    209,252.20/313,878.30 = 68,992.60/x
  3. Step 3: Cross multiply
    209,252.20x = 313,878.30 × 68,992.60
  4. Step 4: Simplify right side
    209,252.20x = 21,655,280,000.58
  5. Step 5: Solve for x
    x = 21,655,280,000.58/209,252.20
  6. Step 6: Final answer
    x = 103,488.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.