Home / 209,921.80-314,882.70-197,674.60

Finding the Fourth Proportional to 209,921.80, 314,882.70 and 197,674.60

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Solution

The fourth proportional to 209,921.80, 314,882.70 and 197,674.60 is: 296,511.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,921.80 : 314,882.70 = 197,674.60 : x
  2. Step 2: Convert to fraction form
    209,921.80/314,882.70 = 197,674.60/x
  3. Step 3: Cross multiply
    209,921.80x = 314,882.70 × 197,674.60
  4. Step 4: Simplify right side
    209,921.80x = 62,244,311,769.42
  5. Step 5: Solve for x
    x = 62,244,311,769.42/209,921.80
  6. Step 6: Final answer
    x = 296,511.90

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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.