Home / 351,921.02-485,536.83-198,944.42

Finding the Fourth Proportional to 351,921.02, 485,536.83 and 198,944.42

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Solution

The fourth proportional to 351,921.02, 485,536.83 and 198,944.42 is: 274,478.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,921.02 : 485,536.83 = 198,944.42 : x
  2. Step 2: Convert to fraction form
    351,921.02/485,536.83 = 198,944.42/x
  3. Step 3: Cross multiply
    351,921.02x = 485,536.83 × 198,944.42
  4. Step 4: Simplify right side
    351,921.02x = 96,594,843,032.99
  5. Step 5: Solve for x
    x = 96,594,843,032.99/351,921.02
  6. Step 6: Final answer
    x = 274,478.75

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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.