Home / 198,558.64-297,837.38-80,228.60

Finding the Fourth Proportional to 198,558.64, 297,837.38 and 80,228.60

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Solution

The fourth proportional to 198,558.64, 297,837.38 and 80,228.60 is: 120,342.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,558.64 : 297,837.38 = 80,228.60 : x
  2. Step 2: Convert to fraction form
    198,558.64/297,837.38 = 80,228.60/x
  3. Step 3: Cross multiply
    198,558.64x = 297,837.38 × 80,228.60
  4. Step 4: Simplify right side
    198,558.64x = 23,895,076,025.07
  5. Step 5: Solve for x
    x = 23,895,076,025.07/198,558.64
  6. Step 6: Final answer
    x = 120,342.67

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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.