Home / 231,790.40-347,685.60-74,034.80

Finding the Fourth Proportional to 231,790.40, 347,685.60 and 74,034.80

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Solution

The fourth proportional to 231,790.40, 347,685.60 and 74,034.80 is: 111,052.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,790.40 : 347,685.60 = 74,034.80 : x
  2. Step 2: Convert to fraction form
    231,790.40/347,685.60 = 74,034.80/x
  3. Step 3: Cross multiply
    231,790.40x = 347,685.60 × 74,034.80
  4. Step 4: Simplify right side
    231,790.40x = 25,740,833,858.88
  5. Step 5: Solve for x
    x = 25,740,833,858.88/231,790.40
  6. Step 6: Final answer
    x = 111,052.20

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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.