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Finding the Fourth Proportional to 355,322.49, 490,346.31 and 194,177.56

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Solution

The fourth proportional to 355,322.49, 490,346.31 and 194,177.56 is: 267,965.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,322.49 : 490,346.31 = 194,177.56 : x
  2. Step 2: Convert to fraction form
    355,322.49/490,346.31 = 194,177.56/x
  3. Step 3: Cross multiply
    355,322.49x = 490,346.31 × 194,177.56
  4. Step 4: Simplify right side
    355,322.49x = 95,214,250,030.80
  5. Step 5: Solve for x
    x = 95,214,250,030.80/355,322.49
  6. Step 6: Final answer
    x = 267,965.73

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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.