Home / 274,670.04-379,083.06-198,435.78

Finding the Fourth Proportional to 274,670.04, 379,083.06 and 198,435.78

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Solution

The fourth proportional to 274,670.04, 379,083.06 and 198,435.78 is: 273,869.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,670.04 : 379,083.06 = 198,435.78 : x
  2. Step 2: Convert to fraction form
    274,670.04/379,083.06 = 198,435.78/x
  3. Step 3: Cross multiply
    274,670.04x = 379,083.06 × 198,435.78
  4. Step 4: Simplify right side
    274,670.04x = 75,223,642,695.89
  5. Step 5: Solve for x
    x = 75,223,642,695.89/274,670.04
  6. Step 6: Final answer
    x = 273,869.12

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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.