Home / 198,930.07-274,527-108,288.64

Finding the Fourth Proportional to 198,930.07, 274,527 and 108,288.64

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Solution

The fourth proportional to 198,930.07, 274,527 and 108,288.64 is: 149,440.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,930.07 : 274,527 = 108,288.64 : x
  2. Step 2: Convert to fraction form
    198,930.07/274,527 = 108,288.64/x
  3. Step 3: Cross multiply
    198,930.07x = 274,527 × 108,288.64
  4. Step 4: Simplify right side
    198,930.07x = 29,728,155,473.28
  5. Step 5: Solve for x
    x = 29,728,155,473.28/198,930.07
  6. Step 6: Final answer
    x = 149,440.23

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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.