Home / 209,834.80-313,984.20-154,538.80

Finding the Fourth Proportional to 209,834.80, 313,984.20 and 154,538.80

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Solution

The fourth proportional to 209,834.80, 313,984.20 and 154,538.80 is: 231,242.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,834.80 : 313,984.20 = 154,538.80 : x
  2. Step 2: Convert to fraction form
    209,834.80/313,984.20 = 154,538.80/x
  3. Step 3: Cross multiply
    209,834.80x = 313,984.20 × 154,538.80
  4. Step 4: Simplify right side
    209,834.80x = 48,522,741,486.96
  5. Step 5: Solve for x
    x = 48,522,741,486.96/209,834.80
  6. Step 6: Final answer
    x = 231,242.58

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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.