Home / 454,816.20-682,256.70-139,272.60

Finding the Fourth Proportional to 454,816.20, 682,256.70 and 139,272.60

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Solution

The fourth proportional to 454,816.20, 682,256.70 and 139,272.60 is: 208,918.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,816.20 : 682,256.70 = 139,272.60 : x
  2. Step 2: Convert to fraction form
    454,816.20/682,256.70 = 139,272.60/x
  3. Step 3: Cross multiply
    454,816.20x = 682,256.70 × 139,272.60
  4. Step 4: Simplify right side
    454,816.20x = 95,019,664,476.42
  5. Step 5: Solve for x
    x = 95,019,664,476.42/454,816.20
  6. Step 6: Final answer
    x = 208,918.82

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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.