Home / 205,684.32-308,507.04-65,418.24

Finding the Fourth Proportional to 205,684.32, 308,507.04 and 65,418.24

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Solution

The fourth proportional to 205,684.32, 308,507.04 and 65,418.24 is: 98,121.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,684.32 : 308,507.04 = 65,418.24 : x
  2. Step 2: Convert to fraction form
    205,684.32/308,507.04 = 65,418.24/x
  3. Step 3: Cross multiply
    205,684.32x = 308,507.04 × 65,418.24
  4. Step 4: Simplify right side
    205,684.32x = 20,181,987,584.41
  5. Step 5: Solve for x
    x = 20,181,987,584.41/205,684.32
  6. Step 6: Final answer
    x = 98,121.18

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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.