Home / 321,936.40-482,515.80-164,083.60

Finding the Fourth Proportional to 321,936.40, 482,515.80 and 164,083.60

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Solution

The fourth proportional to 321,936.40, 482,515.80 and 164,083.60 is: 245,927.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,936.40 : 482,515.80 = 164,083.60 : x
  2. Step 2: Convert to fraction form
    321,936.40/482,515.80 = 164,083.60/x
  3. Step 3: Cross multiply
    321,936.40x = 482,515.80 × 164,083.60
  4. Step 4: Simplify right side
    321,936.40x = 79,172,929,520.88
  5. Step 5: Solve for x
    x = 79,172,929,520.88/321,936.40
  6. Step 6: Final answer
    x = 245,927.24

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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.