Home / 283,105.20-390,846.32-187,740.64

Finding the Fourth Proportional to 283,105.20, 390,846.32 and 187,740.64

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Solution

The fourth proportional to 283,105.20, 390,846.32 and 187,740.64 is: 259,188.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,105.20 : 390,846.32 = 187,740.64 : x
  2. Step 2: Convert to fraction form
    283,105.20/390,846.32 = 187,740.64/x
  3. Step 3: Cross multiply
    283,105.20x = 390,846.32 × 187,740.64
  4. Step 4: Simplify right side
    283,105.20x = 73,377,738,258.44
  5. Step 5: Solve for x
    x = 73,377,738,258.44/283,105.20
  6. Step 6: Final answer
    x = 259,188.95

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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.