Home / 193,621.80-290,432.70-178,458.60

Finding the Fourth Proportional to 193,621.80, 290,432.70 and 178,458.60

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Solution

The fourth proportional to 193,621.80, 290,432.70 and 178,458.60 is: 267,687.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,621.80 : 290,432.70 = 178,458.60 : x
  2. Step 2: Convert to fraction form
    193,621.80/290,432.70 = 178,458.60/x
  3. Step 3: Cross multiply
    193,621.80x = 290,432.70 × 178,458.60
  4. Step 4: Simplify right side
    193,621.80x = 51,830,213,036.22
  5. Step 5: Solve for x
    x = 51,830,213,036.22/193,621.80
  6. Step 6: Final answer
    x = 267,687.90

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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.