Home / 351,732.23-485,415.11-198,784.55

Finding the Fourth Proportional to 351,732.23, 485,415.11 and 198,784.55

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Solution

The fourth proportional to 351,732.23, 485,415.11 and 198,784.55 is: 274,336.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,732.23 : 485,415.11 = 198,784.55 : x
  2. Step 2: Convert to fraction form
    351,732.23/485,415.11 = 198,784.55/x
  3. Step 3: Cross multiply
    351,732.23x = 485,415.11 × 198,784.55
  4. Step 4: Simplify right side
    351,732.23x = 96,493,024,204.55
  5. Step 5: Solve for x
    x = 96,493,024,204.55/351,732.23
  6. Step 6: Final answer
    x = 274,336.60

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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.