Home / 321,309.20-481,877.40-96,669.20

Finding the Fourth Proportional to 321,309.20, 481,877.40 and 96,669.20

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Solution

The fourth proportional to 321,309.20, 481,877.40 and 96,669.20 is: 144,977.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,309.20 : 481,877.40 = 96,669.20 : x
  2. Step 2: Convert to fraction form
    321,309.20/481,877.40 = 96,669.20/x
  3. Step 3: Cross multiply
    321,309.20x = 481,877.40 × 96,669.20
  4. Step 4: Simplify right side
    321,309.20x = 46,582,702,756.08
  5. Step 5: Solve for x
    x = 46,582,702,756.08/321,309.20
  6. Step 6: Final answer
    x = 144,977.81

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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.