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Finding the Fourth Proportional to 325,138.76, 448,761.72 and 197,855.36

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Solution

The fourth proportional to 325,138.76, 448,761.72 and 197,855.36 is: 273,083.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,138.76 : 448,761.72 = 197,855.36 : x
  2. Step 2: Convert to fraction form
    325,138.76/448,761.72 = 197,855.36/x
  3. Step 3: Cross multiply
    325,138.76x = 448,761.72 × 197,855.36
  4. Step 4: Simplify right side
    325,138.76x = 88,789,911,664.82
  5. Step 5: Solve for x
    x = 88,789,911,664.82/325,138.76
  6. Step 6: Final answer
    x = 273,083.13

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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.