Home / 269,812.75-371,995.46-221,235.70

Finding the Fourth Proportional to 269,812.75, 371,995.46 and 221,235.70

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Solution

The fourth proportional to 269,812.75, 371,995.46 and 221,235.70 is: 305,021.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,812.75 : 371,995.46 = 221,235.70 : x
  2. Step 2: Convert to fraction form
    269,812.75/371,995.46 = 221,235.70/x
  3. Step 3: Cross multiply
    269,812.75x = 371,995.46 × 221,235.70
  4. Step 4: Simplify right side
    269,812.75x = 82,298,674,883.74
  5. Step 5: Solve for x
    x = 82,298,674,883.74/269,812.75
  6. Step 6: Final answer
    x = 305,021.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.