Home / 198,902.36-274,583.04-155,805.10

Finding the Fourth Proportional to 198,902.36, 274,583.04 and 155,805.10

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Solution

The fourth proportional to 198,902.36, 274,583.04 and 155,805.10 is: 215,087.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,902.36 : 274,583.04 = 155,805.10 : x
  2. Step 2: Convert to fraction form
    198,902.36/274,583.04 = 155,805.10/x
  3. Step 3: Cross multiply
    198,902.36x = 274,583.04 × 155,805.10
  4. Step 4: Simplify right side
    198,902.36x = 42,781,438,005.50
  5. Step 5: Solve for x
    x = 42,781,438,005.50/198,902.36
  6. Step 6: Final answer
    x = 215,087.63

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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.