Home / 217,815.80-325,848.90-188,558.60

Finding the Fourth Proportional to 217,815.80, 325,848.90 and 188,558.60

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Solution

The fourth proportional to 217,815.80, 325,848.90 and 188,558.60 is: 282,080.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,815.80 : 325,848.90 = 188,558.60 : x
  2. Step 2: Convert to fraction form
    217,815.80/325,848.90 = 188,558.60/x
  3. Step 3: Cross multiply
    217,815.80x = 325,848.90 × 188,558.60
  4. Step 4: Simplify right side
    217,815.80x = 61,441,612,395.54
  5. Step 5: Solve for x
    x = 61,441,612,395.54/217,815.80
  6. Step 6: Final answer
    x = 282,080.60

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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.