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Finding the Fourth Proportional to 298,322.58, 447,469.29 and 111,319.50

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Solution

The fourth proportional to 298,322.58, 447,469.29 and 111,319.50 is: 166,973.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,322.58 : 447,469.29 = 111,319.50 : x
  2. Step 2: Convert to fraction form
    298,322.58/447,469.29 = 111,319.50/x
  3. Step 3: Cross multiply
    298,322.58x = 447,469.29 × 111,319.50
  4. Step 4: Simplify right side
    298,322.58x = 49,812,057,628.16
  5. Step 5: Solve for x
    x = 49,812,057,628.16/298,322.58
  6. Step 6: Final answer
    x = 166,973.81

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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.