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Finding the Fourth Proportional to 353,999.16, 488,464.02 and 203,067

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Solution

The fourth proportional to 353,999.16, 488,464.02 and 203,067 is: 280,201.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,999.16 : 488,464.02 = 203,067 : x
  2. Step 2: Convert to fraction form
    353,999.16/488,464.02 = 203,067/x
  3. Step 3: Cross multiply
    353,999.16x = 488,464.02 × 203,067
  4. Step 4: Simplify right side
    353,999.16x = 99,190,923,149.34
  5. Step 5: Solve for x
    x = 99,190,923,149.34/353,999.16
  6. Step 6: Final answer
    x = 280,201.01

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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.