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Finding the Fourth Proportional to 216,994.54, 325,334.09 and 90,670.94

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Solution

The fourth proportional to 216,994.54, 325,334.09 and 90,670.94 is: 135,940.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,994.54 : 325,334.09 = 90,670.94 : x
  2. Step 2: Convert to fraction form
    216,994.54/325,334.09 = 90,670.94/x
  3. Step 3: Cross multiply
    216,994.54x = 325,334.09 × 90,670.94
  4. Step 4: Simplify right side
    216,994.54x = 29,498,348,567.68
  5. Step 5: Solve for x
    x = 29,498,348,567.68/216,994.54
  6. Step 6: Final answer
    x = 135,940.51

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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.