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Finding the Fourth Proportional to 355,322.46, 490,346.28 and 194,179.98

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Solution

The fourth proportional to 355,322.46, 490,346.28 and 194,179.98 is: 267,969.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,322.46 : 490,346.28 = 194,179.98 : x
  2. Step 2: Convert to fraction form
    355,322.46/490,346.28 = 194,179.98/x
  3. Step 3: Cross multiply
    355,322.46x = 490,346.28 × 194,179.98
  4. Step 4: Simplify right side
    355,322.46x = 95,215,430,843.47
  5. Step 5: Solve for x
    x = 95,215,430,843.47/355,322.46
  6. Step 6: Final answer
    x = 267,969.07

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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.