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Finding the Fourth Proportional to 445,369.26, 668,044.19 and 108,411.69

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Solution

The fourth proportional to 445,369.26, 668,044.19 and 108,411.69 is: 162,615.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,369.26 : 668,044.19 = 108,411.69 : x
  2. Step 2: Convert to fraction form
    445,369.26/668,044.19 = 108,411.69/x
  3. Step 3: Cross multiply
    445,369.26x = 668,044.19 × 108,411.69
  4. Step 4: Simplify right side
    445,369.26x = 72,423,799,090.52
  5. Step 5: Solve for x
    x = 72,423,799,090.52/445,369.26
  6. Step 6: Final answer
    x = 162,615.17

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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.