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Finding the Fourth Proportional to 286,168.10, 394,913.49 and 178,800.39

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Solution

The fourth proportional to 286,168.10, 394,913.49 and 178,800.39 is: 246,745.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,168.10 : 394,913.49 = 178,800.39 : x
  2. Step 2: Convert to fraction form
    286,168.10/394,913.49 = 178,800.39/x
  3. Step 3: Cross multiply
    286,168.10x = 394,913.49 × 178,800.39
  4. Step 4: Simplify right side
    286,168.10x = 70,610,686,028.26
  5. Step 5: Solve for x
    x = 70,610,686,028.26/286,168.10
  6. Step 6: Final answer
    x = 246,745.49

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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.