Home / 394,131.84-591,210.36-154,236.24

Finding the Fourth Proportional to 394,131.84, 591,210.36 and 154,236.24

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Solution

The fourth proportional to 394,131.84, 591,210.36 and 154,236.24 is: 231,359.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,131.84 : 591,210.36 = 154,236.24 : x
  2. Step 2: Convert to fraction form
    394,131.84/591,210.36 = 154,236.24/x
  3. Step 3: Cross multiply
    394,131.84x = 591,210.36 × 154,236.24
  4. Step 4: Simplify right side
    394,131.84x = 91,186,062,975.45
  5. Step 5: Solve for x
    x = 91,186,062,975.45/394,131.84
  6. Step 6: Final answer
    x = 231,359.29

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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.