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Finding the Fourth Proportional to 342,246.97, 472,111.22 and 198,991.18

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Solution

The fourth proportional to 342,246.97, 472,111.22 and 198,991.18 is: 274,497.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,246.97 : 472,111.22 = 198,991.18 : x
  2. Step 2: Convert to fraction form
    342,246.97/472,111.22 = 198,991.18/x
  3. Step 3: Cross multiply
    342,246.97x = 472,111.22 × 198,991.18
  4. Step 4: Simplify right side
    342,246.97x = 93,945,965,403.53
  5. Step 5: Solve for x
    x = 93,945,965,403.53/342,246.97
  6. Step 6: Final answer
    x = 274,497.59

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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.