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Finding the Fourth Proportional to 336,881.64, 505,686.42 and 299,679.96

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Solution

The fourth proportional to 336,881.64, 505,686.42 and 299,679.96 is: 449,843.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,881.64 : 505,686.42 = 299,679.96 : x
  2. Step 2: Convert to fraction form
    336,881.64/505,686.42 = 299,679.96/x
  3. Step 3: Cross multiply
    336,881.64x = 505,686.42 × 299,679.96
  4. Step 4: Simplify right side
    336,881.64x = 151,544,086,118.14
  5. Step 5: Solve for x
    x = 151,544,086,118.14/336,881.64
  6. Step 6: Final answer
    x = 449,843.71

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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.