Home / 288,541.44-398,196-161,222.40

Finding the Fourth Proportional to 288,541.44, 398,196 and 161,222.40

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Solution

The fourth proportional to 288,541.44, 398,196 and 161,222.40 is: 222,491.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,541.44 : 398,196 = 161,222.40 : x
  2. Step 2: Convert to fraction form
    288,541.44/398,196 = 161,222.40/x
  3. Step 3: Cross multiply
    288,541.44x = 398,196 × 161,222.40
  4. Step 4: Simplify right side
    288,541.44x = 64,198,114,790.40
  5. Step 5: Solve for x
    x = 64,198,114,790.40/288,541.44
  6. Step 6: Final answer
    x = 222,491.84

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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.