Home / 394,331.35-591,260.10-154,159.20

Finding the Fourth Proportional to 394,331.35, 591,260.10 and 154,159.20

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Solution

The fourth proportional to 394,331.35, 591,260.10 and 154,159.20 is: 231,146.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,331.35 : 591,260.10 = 154,159.20 : x
  2. Step 2: Convert to fraction form
    394,331.35/591,260.10 = 154,159.20/x
  3. Step 3: Cross multiply
    394,331.35x = 591,260.10 × 154,159.20
  4. Step 4: Simplify right side
    394,331.35x = 91,148,181,051.62
  5. Step 5: Solve for x
    x = 91,148,181,051.62/394,331.35
  6. Step 6: Final answer
    x = 231,146.17

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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.