Home / 419,828.22-629,745.17-153,479.16

Finding the Fourth Proportional to 419,828.22, 629,745.17 and 153,479.16

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Solution

The fourth proportional to 419,828.22, 629,745.17 and 153,479.16 is: 230,219.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,828.22 : 629,745.17 = 153,479.16 : x
  2. Step 2: Convert to fraction form
    419,828.22/629,745.17 = 153,479.16/x
  3. Step 3: Cross multiply
    419,828.22x = 629,745.17 × 153,479.16
  4. Step 4: Simplify right side
    419,828.22x = 96,652,758,938.26
  5. Step 5: Solve for x
    x = 96,652,758,938.26/419,828.22
  6. Step 6: Final answer
    x = 230,219.78

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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.