Home / 218,076.10-300,949.43-122,580.74

Finding the Fourth Proportional to 218,076.10, 300,949.43 and 122,580.74

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Solution

The fourth proportional to 218,076.10, 300,949.43 and 122,580.74 is: 169,163.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,076.10 : 300,949.43 = 122,580.74 : x
  2. Step 2: Convert to fraction form
    218,076.10/300,949.43 = 122,580.74/x
  3. Step 3: Cross multiply
    218,076.10x = 300,949.43 × 122,580.74
  4. Step 4: Simplify right side
    218,076.10x = 36,890,603,971.45
  5. Step 5: Solve for x
    x = 36,890,603,971.45/218,076.10
  6. Step 6: Final answer
    x = 169,163.90

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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.