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Finding the Fourth Proportional to 335,954, 503,931 and 138,962

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Solution

The fourth proportional to 335,954, 503,931 and 138,962 is: 208,443

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,954 : 503,931 = 138,962 : x
  2. Step 2: Convert to fraction form
    335,954/503,931 = 138,962/x
  3. Step 3: Cross multiply
    335,954x = 503,931 × 138,962
  4. Step 4: Simplify right side
    335,954x = 70,027,259,622
  5. Step 5: Solve for x
    x = 70,027,259,622/335,954
  6. Step 6: Final answer
    x = 208,443

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.