Home / 289,027.36-398,858.20-161,705.44

Finding the Fourth Proportional to 289,027.36, 398,858.20 and 161,705.44

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Solution

The fourth proportional to 289,027.36, 398,858.20 and 161,705.44 is: 223,153.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,027.36 : 398,858.20 = 161,705.44 : x
  2. Step 2: Convert to fraction form
    289,027.36/398,858.20 = 161,705.44/x
  3. Step 3: Cross multiply
    289,027.36x = 398,858.20 × 161,705.44
  4. Step 4: Simplify right side
    289,027.36x = 64,497,540,728.61
  5. Step 5: Solve for x
    x = 64,497,540,728.61/289,027.36
  6. Step 6: Final answer
    x = 223,153.76

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1.5x scale

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.