Home / 298,975.20-447,685.20-193,221.60

Finding the Fourth Proportional to 298,975.20, 447,685.20 and 193,221.60

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Solution

The fourth proportional to 298,975.20, 447,685.20 and 193,221.60 is: 289,329.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,975.20 : 447,685.20 = 193,221.60 : x
  2. Step 2: Convert to fraction form
    298,975.20/447,685.20 = 193,221.60/x
  3. Step 3: Cross multiply
    298,975.20x = 447,685.20 × 193,221.60
  4. Step 4: Simplify right side
    298,975.20x = 86,502,450,640.32
  5. Step 5: Solve for x
    x = 86,502,450,640.32/298,975.20
  6. Step 6: Final answer
    x = 289,329.85

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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.