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Finding the Fourth Proportional to 445,274.92, 668,131.42 and 208,576.68

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Solution

The fourth proportional to 445,274.92, 668,131.42 and 208,576.68 is: 312,967.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,274.92 : 668,131.42 = 208,576.68 : x
  2. Step 2: Convert to fraction form
    445,274.92/668,131.42 = 208,576.68/x
  3. Step 3: Cross multiply
    445,274.92x = 668,131.42 × 208,576.68
  4. Step 4: Simplify right side
    445,274.92x = 139,356,633,387.29
  5. Step 5: Solve for x
    x = 139,356,633,387.29/445,274.92
  6. Step 6: Final answer
    x = 312,967.62

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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.