Home / 321,204.10-481,806.15-99,559.30

Finding the Fourth Proportional to 321,204.10, 481,806.15 and 99,559.30

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Solution

The fourth proportional to 321,204.10, 481,806.15 and 99,559.30 is: 149,338.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,204.10 : 481,806.15 = 99,559.30 : x
  2. Step 2: Convert to fraction form
    321,204.10/481,806.15 = 99,559.30/x
  3. Step 3: Cross multiply
    321,204.10x = 481,806.15 × 99,559.30
  4. Step 4: Simplify right side
    321,204.10x = 47,968,283,029.70
  5. Step 5: Solve for x
    x = 47,968,283,029.70/321,204.10
  6. Step 6: Final answer
    x = 149,338.95

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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.