Home / 419,828.21-629,369.37-163,601.47

Finding the Fourth Proportional to 419,828.21, 629,369.37 and 163,601.47

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Solution

The fourth proportional to 419,828.21, 629,369.37 and 163,601.47 is: 245,256.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,828.21 : 629,369.37 = 163,601.47 : x
  2. Step 2: Convert to fraction form
    419,828.21/629,369.37 = 163,601.47/x
  3. Step 3: Cross multiply
    419,828.21x = 629,369.37 × 163,601.47
  4. Step 4: Simplify right side
    419,828.21x = 102,965,753,145.06
  5. Step 5: Solve for x
    x = 102,965,753,145.06/419,828.21
  6. Step 6: Final answer
    x = 245,256.87

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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.