Home / 193,619.80-290,429.70-178,456.60

Finding the Fourth Proportional to 193,619.80, 290,429.70 and 178,456.60

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Solution

The fourth proportional to 193,619.80, 290,429.70 and 178,456.60 is: 267,684.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,619.80 : 290,429.70 = 178,456.60 : x
  2. Step 2: Convert to fraction form
    193,619.80/290,429.70 = 178,456.60/x
  3. Step 3: Cross multiply
    193,619.80x = 290,429.70 × 178,456.60
  4. Step 4: Simplify right side
    193,619.80x = 51,829,096,801.02
  5. Step 5: Solve for x
    x = 51,829,096,801.02/193,619.80
  6. Step 6: Final answer
    x = 267,684.90

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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.