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Finding the Fourth Proportional to 201,078.45, 301,617.44 and 51,318.73

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Solution

The fourth proportional to 201,078.45, 301,617.44 and 51,318.73 is: 76,978.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,078.45 : 301,617.44 = 51,318.73 : x
  2. Step 2: Convert to fraction form
    201,078.45/301,617.44 = 51,318.73/x
  3. Step 3: Cross multiply
    201,078.45x = 301,617.44 × 51,318.73
  4. Step 4: Simplify right side
    201,078.45x = 15,478,624,279.52
  5. Step 5: Solve for x
    x = 15,478,624,279.52/201,078.45
  6. Step 6: Final answer
    x = 76,978.04

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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.