Home / 320,938.88-481,453.12-133,907.52

Finding the Fourth Proportional to 320,938.88, 481,453.12 and 133,907.52

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Solution

The fourth proportional to 320,938.88, 481,453.12 and 133,907.52 is: 200,879.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,938.88 : 481,453.12 = 133,907.52 : x
  2. Step 2: Convert to fraction form
    320,938.88/481,453.12 = 133,907.52/x
  3. Step 3: Cross multiply
    320,938.88x = 481,453.12 × 133,907.52
  4. Step 4: Simplify right side
    320,938.88x = 64,470,193,295.46
  5. Step 5: Solve for x
    x = 64,470,193,295.46/320,938.88
  6. Step 6: Final answer
    x = 200,879.97

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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.