Home / 321,132.36-481,997.43-163,478.82

Finding the Fourth Proportional to 321,132.36, 481,997.43 and 163,478.82

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Solution

The fourth proportional to 321,132.36, 481,997.43 and 163,478.82 is: 245,370.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,132.36 : 481,997.43 = 163,478.82 : x
  2. Step 2: Convert to fraction form
    321,132.36/481,997.43 = 163,478.82/x
  3. Step 3: Cross multiply
    321,132.36x = 481,997.43 × 163,478.82
  4. Step 4: Simplify right side
    321,132.36x = 78,796,371,099.43
  5. Step 5: Solve for x
    x = 78,796,371,099.43/321,132.36
  6. Step 6: Final answer
    x = 245,370.39

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1.5x scale

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.