Home / 268,974.90-370,838.49-220,396.22

Finding the Fourth Proportional to 268,974.90, 370,838.49 and 220,396.22

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Solution

The fourth proportional to 268,974.90, 370,838.49 and 220,396.22 is: 303,862.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,974.90 : 370,838.49 = 220,396.22 : x
  2. Step 2: Convert to fraction form
    268,974.90/370,838.49 = 220,396.22/x
  3. Step 3: Cross multiply
    268,974.90x = 370,838.49 × 220,396.22
  4. Step 4: Simplify right side
    268,974.90x = 81,731,401,426.51
  5. Step 5: Solve for x
    x = 81,731,401,426.51/268,974.90
  6. Step 6: Final answer
    x = 303,862.56

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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.