Home / 320,933.23-481,405.31-121,347.61

Finding the Fourth Proportional to 320,933.23, 481,405.31 and 121,347.61

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Solution

The fourth proportional to 320,933.23, 481,405.31 and 121,347.61 is: 182,023.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,933.23 : 481,405.31 = 121,347.61 : x
  2. Step 2: Convert to fraction form
    320,933.23/481,405.31 = 121,347.61/x
  3. Step 3: Cross multiply
    320,933.23x = 481,405.31 × 121,347.61
  4. Step 4: Simplify right side
    320,933.23x = 58,417,383,809.81
  5. Step 5: Solve for x
    x = 58,417,383,809.81/320,933.23
  6. Step 6: Final answer
    x = 182,023.48

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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.