Home / 209,470.40-313,959.49-96,912.80

Finding the Fourth Proportional to 209,470.40, 313,959.49 and 96,912.80

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Solution

The fourth proportional to 209,470.40, 313,959.49 and 96,912.80 is: 145,255.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,470.40 : 313,959.49 = 96,912.80 : x
  2. Step 2: Convert to fraction form
    209,470.40/313,959.49 = 96,912.80/x
  3. Step 3: Cross multiply
    209,470.40x = 313,959.49 × 96,912.80
  4. Step 4: Simplify right side
    209,470.40x = 30,426,694,938.90
  5. Step 5: Solve for x
    x = 30,426,694,938.90/209,470.40
  6. Step 6: Final answer
    x = 145,255.34

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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.