Home / 325,631.51-488,558.13-205,548.81

Finding the Fourth Proportional to 325,631.51, 488,558.13 and 205,548.81

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Solution

The fourth proportional to 325,631.51, 488,558.13 and 205,548.81 is: 308,393.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,631.51 : 488,558.13 = 205,548.81 : x
  2. Step 2: Convert to fraction form
    325,631.51/488,558.13 = 205,548.81/x
  3. Step 3: Cross multiply
    325,631.51x = 488,558.13 × 205,548.81
  4. Step 4: Simplify right side
    325,631.51x = 100,422,539,634.42
  5. Step 5: Solve for x
    x = 100,422,539,634.42/325,631.51
  6. Step 6: Final answer
    x = 308,393.19

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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.