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Finding the Fourth Proportional to 445,907.96, 668,860.10 and 161,531.92

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Solution

The fourth proportional to 445,907.96, 668,860.10 and 161,531.92 is: 242,297.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,907.96 : 668,860.10 = 161,531.92 : x
  2. Step 2: Convert to fraction form
    445,907.96/668,860.10 = 161,531.92/x
  3. Step 3: Cross multiply
    445,907.96x = 668,860.10 × 161,531.92
  4. Step 4: Simplify right side
    445,907.96x = 108,042,256,164.39
  5. Step 5: Solve for x
    x = 108,042,256,164.39/445,907.96
  6. Step 6: Final answer
    x = 242,297.21

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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.