Home / 351,561.28-485,184.40-198,627.56

Finding the Fourth Proportional to 351,561.28, 485,184.40 and 198,627.56

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Solution

The fourth proportional to 351,561.28, 485,184.40 and 198,627.56 is: 274,122.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,561.28 : 485,184.40 = 198,627.56 : x
  2. Step 2: Convert to fraction form
    351,561.28/485,184.40 = 198,627.56/x
  3. Step 3: Cross multiply
    351,561.28x = 485,184.40 × 198,627.56
  4. Step 4: Simplify right side
    351,561.28x = 96,370,993,522.06
  5. Step 5: Solve for x
    x = 96,370,993,522.06/351,561.28
  6. Step 6: Final answer
    x = 274,122.89

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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.