Home / 198,897.51-274,474.73-108,255.47

Finding the Fourth Proportional to 198,897.51, 274,474.73 and 108,255.47

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Solution

The fourth proportional to 198,897.51, 274,474.73 and 108,255.47 is: 149,390.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,897.51 : 274,474.73 = 108,255.47 : x
  2. Step 2: Convert to fraction form
    198,897.51/274,474.73 = 108,255.47/x
  3. Step 3: Cross multiply
    198,897.51x = 274,474.73 × 108,255.47
  4. Step 4: Simplify right side
    198,897.51x = 29,713,391,314.82
  5. Step 5: Solve for x
    x = 29,713,391,314.82/198,897.51
  6. Step 6: Final answer
    x = 149,390.46

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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.