Home / 419,828.16-629,840.66-167,124.09

Finding the Fourth Proportional to 419,828.16, 629,840.66 and 167,124.09

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Solution

The fourth proportional to 419,828.16, 629,840.66 and 167,124.09 is: 250,725.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,828.16 : 629,840.66 = 167,124.09 : x
  2. Step 2: Convert to fraction form
    419,828.16/629,840.66 = 167,124.09/x
  3. Step 3: Cross multiply
    419,828.16x = 629,840.66 × 167,124.09
  4. Step 4: Simplify right side
    419,828.16x = 105,261,546,311.88
  5. Step 5: Solve for x
    x = 105,261,546,311.88/419,828.16
  6. Step 6: Final answer
    x = 250,725.31

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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.