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Finding the Fourth Proportional to 325,809.51, 449,617.11 and 198,485.01

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Solution

The fourth proportional to 325,809.51, 449,617.11 and 198,485.01 is: 273,909.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,809.51 : 449,617.11 = 198,485.01 : x
  2. Step 2: Convert to fraction form
    325,809.51/449,617.11 = 198,485.01/x
  3. Step 3: Cross multiply
    325,809.51x = 449,617.11 × 198,485.01
  4. Step 4: Simplify right side
    325,809.51x = 89,242,256,574.52
  5. Step 5: Solve for x
    x = 89,242,256,574.52/325,809.51
  6. Step 6: Final answer
    x = 273,909.31

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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.