Home / 205,618.91-308,272.03-142,270.63

Finding the Fourth Proportional to 205,618.91, 308,272.03 and 142,270.63

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Solution

The fourth proportional to 205,618.91, 308,272.03 and 142,270.63 is: 213,297.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,618.91 : 308,272.03 = 142,270.63 : x
  2. Step 2: Convert to fraction form
    205,618.91/308,272.03 = 142,270.63/x
  3. Step 3: Cross multiply
    205,618.91x = 308,272.03 × 142,270.63
  4. Step 4: Simplify right side
    205,618.91x = 43,858,054,793.12
  5. Step 5: Solve for x
    x = 43,858,054,793.12/205,618.91
  6. Step 6: Final answer
    x = 213,297.77

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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.