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Finding the Fourth Proportional to 442,843.20, 664,264.80 and 110,419.20

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Solution

The fourth proportional to 442,843.20, 664,264.80 and 110,419.20 is: 165,628.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,843.20 : 664,264.80 = 110,419.20 : x
  2. Step 2: Convert to fraction form
    442,843.20/664,264.80 = 110,419.20/x
  3. Step 3: Cross multiply
    442,843.20x = 664,264.80 × 110,419.20
  4. Step 4: Simplify right side
    442,843.20x = 73,347,587,804.16
  5. Step 5: Solve for x
    x = 73,347,587,804.16/442,843.20
  6. Step 6: Final answer
    x = 165,628.80

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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.