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Finding the Fourth Proportional to 445,274.69, 667,847.43 and 145,767.13

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Solution

The fourth proportional to 445,274.69, 667,847.43 and 145,767.13 is: 218,629.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,274.69 : 667,847.43 = 145,767.13 : x
  2. Step 2: Convert to fraction form
    445,274.69/667,847.43 = 145,767.13/x
  3. Step 3: Cross multiply
    445,274.69x = 667,847.43 × 145,767.13
  4. Step 4: Simplify right side
    445,274.69x = 97,350,201,479.36
  5. Step 5: Solve for x
    x = 97,350,201,479.36/445,274.69
  6. Step 6: Final answer
    x = 218,629.54

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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.