Home / 300,370.40-414,511.20-187,193.60

Finding the Fourth Proportional to 300,370.40, 414,511.20 and 187,193.60

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Solution

The fourth proportional to 300,370.40, 414,511.20 and 187,193.60 is: 258,327.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,370.40 : 414,511.20 = 187,193.60 : x
  2. Step 2: Convert to fraction form
    300,370.40/414,511.20 = 187,193.60/x
  3. Step 3: Cross multiply
    300,370.40x = 414,511.20 × 187,193.60
  4. Step 4: Simplify right side
    300,370.40x = 77,593,843,768.32
  5. Step 5: Solve for x
    x = 77,593,843,768.32/300,370.40
  6. Step 6: Final answer
    x = 258,327.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.