Home / 205,786.60-308,219.10-168,922.60

Finding the Fourth Proportional to 205,786.60, 308,219.10 and 168,922.60

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Solution

The fourth proportional to 205,786.60, 308,219.10 and 168,922.60 is: 253,005.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,786.60 : 308,219.10 = 168,922.60 : x
  2. Step 2: Convert to fraction form
    205,786.60/308,219.10 = 168,922.60/x
  3. Step 3: Cross multiply
    205,786.60x = 308,219.10 × 168,922.60
  4. Step 4: Simplify right side
    205,786.60x = 52,065,171,741.66
  5. Step 5: Solve for x
    x = 52,065,171,741.66/205,786.60
  6. Step 6: Final answer
    x = 253,005.65

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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.