Home / 454,912.40-682,368.60-218,133.20

Finding the Fourth Proportional to 454,912.40, 682,368.60 and 218,133.20

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Solution

The fourth proportional to 454,912.40, 682,368.60 and 218,133.20 is: 327,199.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,912.40 : 682,368.60 = 218,133.20 : x
  2. Step 2: Convert to fraction form
    454,912.40/682,368.60 = 218,133.20/x
  3. Step 3: Cross multiply
    454,912.40x = 682,368.60 × 218,133.20
  4. Step 4: Simplify right side
    454,912.40x = 148,847,246,297.52
  5. Step 5: Solve for x
    x = 148,847,246,297.52/454,912.40
  6. Step 6: Final answer
    x = 327,199.80

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Similar ratio
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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.