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Finding the Fourth Proportional to 322,489.84, 483,745.56 and 112,129.60

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Solution

The fourth proportional to 322,489.84, 483,745.56 and 112,129.60 is: 168,198.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,489.84 : 483,745.56 = 112,129.60 : x
  2. Step 2: Convert to fraction form
    322,489.84/483,745.56 = 112,129.60/x
  3. Step 3: Cross multiply
    322,489.84x = 483,745.56 × 112,129.60
  4. Step 4: Simplify right side
    322,489.84x = 54,242,196,144.58
  5. Step 5: Solve for x
    x = 54,242,196,144.58/322,489.84
  6. Step 6: Final answer
    x = 168,198.16

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1.5x scale

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.