Home / 351,734.35-485,364.67-198,786.37

Finding the Fourth Proportional to 351,734.35, 485,364.67 and 198,786.37

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Solution

The fourth proportional to 351,734.35, 485,364.67 and 198,786.37 is: 274,308.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,734.35 : 485,364.67 = 198,786.37 : x
  2. Step 2: Convert to fraction form
    351,734.35/485,364.67 = 198,786.37/x
  3. Step 3: Cross multiply
    351,734.35x = 485,364.67 × 198,786.37
  4. Step 4: Simplify right side
    351,734.35x = 96,483,880,875.55
  5. Step 5: Solve for x
    x = 96,483,880,875.55/351,734.35
  6. Step 6: Final answer
    x = 274,308.95

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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.