Home / 351,700.38-485,367.03-198,734.67

Finding the Fourth Proportional to 351,700.38, 485,367.03 and 198,734.67

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Solution

The fourth proportional to 351,700.38, 485,367.03 and 198,734.67 is: 274,265.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,700.38 : 485,367.03 = 198,734.67 : x
  2. Step 2: Convert to fraction form
    351,700.38/485,367.03 = 198,734.67/x
  3. Step 3: Cross multiply
    351,700.38x = 485,367.03 × 198,734.67
  4. Step 4: Simplify right side
    351,700.38x = 96,459,256,535.93
  5. Step 5: Solve for x
    x = 96,459,256,535.93/351,700.38
  6. Step 6: Final answer
    x = 274,265.43

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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.