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Finding the Fourth Proportional to 274,892.76, 379,127.08 and 193,490.48

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Solution

The fourth proportional to 274,892.76, 379,127.08 and 193,490.48 is: 266,858.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,892.76 : 379,127.08 = 193,490.48 : x
  2. Step 2: Convert to fraction form
    274,892.76/379,127.08 = 193,490.48/x
  3. Step 3: Cross multiply
    274,892.76x = 379,127.08 × 193,490.48
  4. Step 4: Simplify right side
    274,892.76x = 73,357,477,827.11
  5. Step 5: Solve for x
    x = 73,357,477,827.11/274,892.76
  6. Step 6: Final answer
    x = 266,858.53

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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.