Home / 394,173.30-591,298.74-105,981.36

Finding the Fourth Proportional to 394,173.30, 591,298.74 and 105,981.36

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Solution

The fourth proportional to 394,173.30, 591,298.74 and 105,981.36 is: 158,982.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,173.30 : 591,298.74 = 105,981.36 : x
  2. Step 2: Convert to fraction form
    394,173.30/591,298.74 = 105,981.36/x
  3. Step 3: Cross multiply
    394,173.30x = 591,298.74 × 105,981.36
  4. Step 4: Simplify right side
    394,173.30x = 62,666,644,631.49
  5. Step 5: Solve for x
    x = 62,666,644,631.49/394,173.30
  6. Step 6: Final answer
    x = 158,982.47

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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.