Home / 398,123.19-597,181.09-161,409.60

Finding the Fourth Proportional to 398,123.19, 597,181.09 and 161,409.60

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Solution

The fourth proportional to 398,123.19, 597,181.09 and 161,409.60 is: 242,112.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,123.19 : 597,181.09 = 161,409.60 : x
  2. Step 2: Convert to fraction form
    398,123.19/597,181.09 = 161,409.60/x
  3. Step 3: Cross multiply
    398,123.19x = 597,181.09 × 161,409.60
  4. Step 4: Simplify right side
    398,123.19x = 96,390,760,057.42
  5. Step 5: Solve for x
    x = 96,390,760,057.42/398,123.19
  6. Step 6: Final answer
    x = 242,112.90

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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.