Home / 205,729.74-308,619.27-72,582.48

Finding the Fourth Proportional to 205,729.74, 308,619.27 and 72,582.48

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Solution

The fourth proportional to 205,729.74, 308,619.27 and 72,582.48 is: 108,882.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,729.74 : 308,619.27 = 72,582.48 : x
  2. Step 2: Convert to fraction form
    205,729.74/308,619.27 = 72,582.48/x
  3. Step 3: Cross multiply
    205,729.74x = 308,619.27 × 72,582.48
  4. Step 4: Simplify right side
    205,729.74x = 22,400,351,992.39
  5. Step 5: Solve for x
    x = 22,400,351,992.39/205,729.74
  6. Step 6: Final answer
    x = 108,882.42

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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.