Home / 320,366.48-442,137.96-177,137.36

Finding the Fourth Proportional to 320,366.48, 442,137.96 and 177,137.36

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Solution

The fourth proportional to 320,366.48, 442,137.96 and 177,137.36 is: 244,467.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,366.48 : 442,137.96 = 177,137.36 : x
  2. Step 2: Convert to fraction form
    320,366.48/442,137.96 = 177,137.36/x
  3. Step 3: Cross multiply
    320,366.48x = 442,137.96 × 177,137.36
  4. Step 4: Simplify right side
    320,366.48x = 78,319,150,990.19
  5. Step 5: Solve for x
    x = 78,319,150,990.19/320,366.48
  6. Step 6: Final answer
    x = 244,467.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.