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Finding the Fourth Proportional to 355,760.68, 490,961.43 and 202,796.14

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Solution

The fourth proportional to 355,760.68, 490,961.43 and 202,796.14 is: 279,865.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,760.68 : 490,961.43 = 202,796.14 : x
  2. Step 2: Convert to fraction form
    355,760.68/490,961.43 = 202,796.14/x
  3. Step 3: Cross multiply
    355,760.68x = 490,961.43 × 202,796.14
  4. Step 4: Simplify right side
    355,760.68x = 99,565,082,892.88
  5. Step 5: Solve for x
    x = 99,565,082,892.88/355,760.68
  6. Step 6: Final answer
    x = 279,865.34

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1.5x scale

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.