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Finding the Fourth Proportional to 383,904.09, 575,609.40 and 159,419.43

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Solution

The fourth proportional to 383,904.09, 575,609.40 and 159,419.43 is: 239,026.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,904.09 : 575,609.40 = 159,419.43 : x
  2. Step 2: Convert to fraction form
    383,904.09/575,609.40 = 159,419.43/x
  3. Step 3: Cross multiply
    383,904.09x = 575,609.40 × 159,419.43
  4. Step 4: Simplify right side
    383,904.09x = 91,763,322,450.64
  5. Step 5: Solve for x
    x = 91,763,322,450.64/383,904.09
  6. Step 6: Final answer
    x = 239,026.69

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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.