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Finding the Fourth Proportional to 351,562.77, 485,186.45 and 198,629.06

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Solution

The fourth proportional to 351,562.77, 485,186.45 and 198,629.06 is: 274,124.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,562.77 : 485,186.45 = 198,629.06 : x
  2. Step 2: Convert to fraction form
    351,562.77/485,186.45 = 198,629.06/x
  3. Step 3: Cross multiply
    351,562.77x = 485,186.45 × 198,629.06
  4. Step 4: Simplify right side
    351,562.77x = 96,372,125,069.16
  5. Step 5: Solve for x
    x = 96,372,125,069.16/351,562.77
  6. Step 6: Final answer
    x = 274,124.95

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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.