Home / 389,815.37-537,954.03-228,786.56

Finding the Fourth Proportional to 389,815.37, 537,954.03 and 228,786.56

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Solution

The fourth proportional to 389,815.37, 537,954.03 and 228,786.56 is: 315,730.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,815.37 : 537,954.03 = 228,786.56 : x
  2. Step 2: Convert to fraction form
    389,815.37/537,954.03 = 228,786.56/x
  3. Step 3: Cross multiply
    389,815.37x = 537,954.03 × 228,786.56
  4. Step 4: Simplify right side
    389,815.37x = 123,076,649,272.07
  5. Step 5: Solve for x
    x = 123,076,649,272.07/389,815.37
  6. Step 6: Final answer
    x = 315,730.63

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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.