Home / 209,744.08-314,662.20-154,171.60

Finding the Fourth Proportional to 209,744.08, 314,662.20 and 154,171.60

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Solution

The fourth proportional to 209,744.08, 314,662.20 and 154,171.60 is: 231,291.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,744.08 : 314,662.20 = 154,171.60 : x
  2. Step 2: Convert to fraction form
    209,744.08/314,662.20 = 154,171.60/x
  3. Step 3: Cross multiply
    209,744.08x = 314,662.20 × 154,171.60
  4. Step 4: Simplify right side
    209,744.08x = 48,511,974,833.52
  5. Step 5: Solve for x
    x = 48,511,974,833.52/209,744.08
  6. Step 6: Final answer
    x = 231,291.27

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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.