Home / 205,590.83-308,229.94-142,242.55

Finding the Fourth Proportional to 205,590.83, 308,229.94 and 142,242.55

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Solution

The fourth proportional to 205,590.83, 308,229.94 and 142,242.55 is: 213,255.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,590.83 : 308,229.94 = 142,242.55 : x
  2. Step 2: Convert to fraction form
    205,590.83/308,229.94 = 142,242.55/x
  3. Step 3: Cross multiply
    205,590.83x = 308,229.94 × 142,242.55
  4. Step 4: Simplify right side
    205,590.83x = 43,843,412,059.18
  5. Step 5: Solve for x
    x = 43,843,412,059.18/205,590.83
  6. Step 6: Final answer
    x = 213,255.68

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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.