Home / 351,922.32-485,646.84-198,958.20

Finding the Fourth Proportional to 351,922.32, 485,646.84 and 198,958.20

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Solution

The fourth proportional to 351,922.32, 485,646.84 and 198,958.20 is: 274,558.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,922.32 : 485,646.84 = 198,958.20 : x
  2. Step 2: Convert to fraction form
    351,922.32/485,646.84 = 198,958.20/x
  3. Step 3: Cross multiply
    351,922.32x = 485,646.84 × 198,958.20
  4. Step 4: Simplify right side
    351,922.32x = 96,623,421,122.09
  5. Step 5: Solve for x
    x = 96,623,421,122.09/351,922.32
  6. Step 6: Final answer
    x = 274,558.95

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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.