Home / 274,990.41-379,501.88-154,170.54

Finding the Fourth Proportional to 274,990.41, 379,501.88 and 154,170.54

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Solution

The fourth proportional to 274,990.41, 379,501.88 and 154,170.54 is: 212,763.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,990.41 : 379,501.88 = 154,170.54 : x
  2. Step 2: Convert to fraction form
    274,990.41/379,501.88 = 154,170.54/x
  3. Step 3: Cross multiply
    274,990.41x = 379,501.88 × 154,170.54
  4. Step 4: Simplify right side
    274,990.41x = 58,508,008,999.76
  5. Step 5: Solve for x
    x = 58,508,008,999.76/274,990.41
  6. Step 6: Final answer
    x = 212,763.82

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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.