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Finding the Fourth Proportional to 300,988.81, 451,087.12 and 167,931.73

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Solution

The fourth proportional to 300,988.81, 451,087.12 and 167,931.73 is: 251,676.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,988.81 : 451,087.12 = 167,931.73 : x
  2. Step 2: Convert to fraction form
    300,988.81/451,087.12 = 167,931.73/x
  3. Step 3: Cross multiply
    300,988.81x = 451,087.12 × 167,931.73
  4. Step 4: Simplify right side
    300,988.81x = 75,751,837,347.22
  5. Step 5: Solve for x
    x = 75,751,837,347.22/300,988.81
  6. Step 6: Final answer
    x = 251,676.59

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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.