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Finding the Fourth Proportional to 198,866.37, 274,432.73 and 109,442.37

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Solution

The fourth proportional to 198,866.37, 274,432.73 and 109,442.37 is: 151,028.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,866.37 : 274,432.73 = 109,442.37 : x
  2. Step 2: Convert to fraction form
    198,866.37/274,432.73 = 109,442.37/x
  3. Step 3: Cross multiply
    198,866.37x = 274,432.73 × 109,442.37
  4. Step 4: Simplify right side
    198,866.37x = 30,034,567,004.61
  5. Step 5: Solve for x
    x = 30,034,567,004.61/198,866.37
  6. Step 6: Final answer
    x = 151,028.89

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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.