Home / 209,912.20-314,868.30-135,262.60

Finding the Fourth Proportional to 209,912.20, 314,868.30 and 135,262.60

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Solution

The fourth proportional to 209,912.20, 314,868.30 and 135,262.60 is: 202,893.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,912.20 : 314,868.30 = 135,262.60 : x
  2. Step 2: Convert to fraction form
    209,912.20/314,868.30 = 135,262.60/x
  3. Step 3: Cross multiply
    209,912.20x = 314,868.30 × 135,262.60
  4. Step 4: Simplify right side
    209,912.20x = 42,589,904,915.58
  5. Step 5: Solve for x
    x = 42,589,904,915.58/209,912.20
  6. Step 6: Final answer
    x = 202,893.90

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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.