Home / 320,738.78-481,215.06-107,527.77

Finding the Fourth Proportional to 320,738.78, 481,215.06 and 107,527.77

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Solution

The fourth proportional to 320,738.78, 481,215.06 and 107,527.77 is: 161,327.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,738.78 : 481,215.06 = 107,527.77 : x
  2. Step 2: Convert to fraction form
    320,738.78/481,215.06 = 107,527.77/x
  3. Step 3: Cross multiply
    320,738.78x = 481,215.06 × 107,527.77
  4. Step 4: Simplify right side
    320,738.78x = 51,743,982,292.22
  5. Step 5: Solve for x
    x = 51,743,982,292.22/320,738.78
  6. Step 6: Final answer
    x = 161,327.49

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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.