Home / 262,825.40-394,295.70-85,302.20

Finding the Fourth Proportional to 262,825.40, 394,295.70 and 85,302.20

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Solution

The fourth proportional to 262,825.40, 394,295.70 and 85,302.20 is: 127,971.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,825.40 : 394,295.70 = 85,302.20 : x
  2. Step 2: Convert to fraction form
    262,825.40/394,295.70 = 85,302.20/x
  3. Step 3: Cross multiply
    262,825.40x = 394,295.70 × 85,302.20
  4. Step 4: Simplify right side
    262,825.40x = 33,634,290,660.54
  5. Step 5: Solve for x
    x = 33,634,290,660.54/262,825.40
  6. Step 6: Final answer
    x = 127,971.99

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1.5x scale

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.