Home / 209,353.98-313,912.04-142,874.64

Finding the Fourth Proportional to 209,353.98, 313,912.04 and 142,874.64

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Solution

The fourth proportional to 209,353.98, 313,912.04 and 142,874.64 is: 214,230.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,353.98 : 313,912.04 = 142,874.64 : x
  2. Step 2: Convert to fraction form
    209,353.98/313,912.04 = 142,874.64/x
  3. Step 3: Cross multiply
    209,353.98x = 313,912.04 × 142,874.64
  4. Step 4: Simplify right side
    209,353.98x = 44,850,068,992.29
  5. Step 5: Solve for x
    x = 44,850,068,992.29/209,353.98
  6. Step 6: Final answer
    x = 214,230.79

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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.