Home / 394,619.25-591,925.15-170,138.28

Finding the Fourth Proportional to 394,619.25, 591,925.15 and 170,138.28

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Solution

The fourth proportional to 394,619.25, 591,925.15 and 170,138.28 is: 255,205.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,619.25 : 591,925.15 = 170,138.28 : x
  2. Step 2: Convert to fraction form
    394,619.25/591,925.15 = 170,138.28/x
  3. Step 3: Cross multiply
    394,619.25x = 591,925.15 × 170,138.28
  4. Step 4: Simplify right side
    394,619.25x = 100,709,126,909.74
  5. Step 5: Solve for x
    x = 100,709,126,909.74/394,619.25
  6. Step 6: Final answer
    x = 255,205.81

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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.