Home / 320,573.36-481,011.24-143,064.56

Finding the Fourth Proportional to 320,573.36, 481,011.24 and 143,064.56

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Solution

The fourth proportional to 320,573.36, 481,011.24 and 143,064.56 is: 214,664.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,573.36 : 481,011.24 = 143,064.56 : x
  2. Step 2: Convert to fraction form
    320,573.36/481,011.24 = 143,064.56/x
  3. Step 3: Cross multiply
    320,573.36x = 481,011.24 × 143,064.56
  4. Step 4: Simplify right side
    320,573.36x = 68,815,661,405.65
  5. Step 5: Solve for x
    x = 68,815,661,405.65/320,573.36
  6. Step 6: Final answer
    x = 214,664.32

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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.