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Finding the Fourth Proportional to 274,903.04, 379,359.78 and 161,733.08

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Solution

The fourth proportional to 274,903.04, 379,359.78 and 161,733.08 is: 223,187.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,903.04 : 379,359.78 = 161,733.08 : x
  2. Step 2: Convert to fraction form
    274,903.04/379,359.78 = 161,733.08/x
  3. Step 3: Cross multiply
    274,903.04x = 379,359.78 × 161,733.08
  4. Step 4: Simplify right side
    274,903.04x = 61,355,025,647.52
  5. Step 5: Solve for x
    x = 61,355,025,647.52/274,903.04
  6. Step 6: Final answer
    x = 223,187.88

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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.