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Finding the Fourth Proportional to 296,883.21, 445,325.73 and 72,243.69

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Solution

The fourth proportional to 296,883.21, 445,325.73 and 72,243.69 is: 108,365.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,883.21 : 445,325.73 = 72,243.69 : x
  2. Step 2: Convert to fraction form
    296,883.21/445,325.73 = 72,243.69/x
  3. Step 3: Cross multiply
    296,883.21x = 445,325.73 × 72,243.69
  4. Step 4: Simplify right side
    296,883.21x = 32,171,973,987.14
  5. Step 5: Solve for x
    x = 32,171,973,987.14/296,883.21
  6. Step 6: Final answer
    x = 108,365.76

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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.