Home / 351,731.23-485,413.73-198,783.55

Finding the Fourth Proportional to 351,731.23, 485,413.73 and 198,783.55

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Solution

The fourth proportional to 351,731.23, 485,413.73 and 198,783.55 is: 274,335.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,731.23 : 485,413.73 = 198,783.55 : x
  2. Step 2: Convert to fraction form
    351,731.23/485,413.73 = 198,783.55/x
  3. Step 3: Cross multiply
    351,731.23x = 485,413.73 × 198,783.55
  4. Step 4: Simplify right side
    351,731.23x = 96,492,264,080.99
  5. Step 5: Solve for x
    x = 96,492,264,080.99/351,731.23
  6. Step 6: Final answer
    x = 274,335.22

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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.