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Finding the Fourth Proportional to 274,958.88, 379,447.74 and 154,127.04

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Solution

The fourth proportional to 274,958.88, 379,447.74 and 154,127.04 is: 212,697.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,958.88 : 379,447.74 = 154,127.04 : x
  2. Step 2: Convert to fraction form
    274,958.88/379,447.74 = 154,127.04/x
  3. Step 3: Cross multiply
    274,958.88x = 379,447.74 × 154,127.04
  4. Step 4: Simplify right side
    274,958.88x = 58,483,157,000.89
  5. Step 5: Solve for x
    x = 58,483,157,000.89/274,958.88
  6. Step 6: Final answer
    x = 212,697.83

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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.