Home / 198,971.28-274,599.72-148,582.80

Finding the Fourth Proportional to 198,971.28, 274,599.72 and 148,582.80

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Solution

The fourth proportional to 198,971.28, 274,599.72 and 148,582.80 is: 205,058.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,971.28 : 274,599.72 = 148,582.80 : x
  2. Step 2: Convert to fraction form
    198,971.28/274,599.72 = 148,582.80/x
  3. Step 3: Cross multiply
    198,971.28x = 274,599.72 × 148,582.80
  4. Step 4: Simplify right side
    198,971.28x = 40,800,795,276.82
  5. Step 5: Solve for x
    x = 40,800,795,276.82/198,971.28
  6. Step 6: Final answer
    x = 205,058.72

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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.