Home / 263,116.40-394,480.20-144,921.20

Finding the Fourth Proportional to 263,116.40, 394,480.20 and 144,921.20

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Solution

The fourth proportional to 263,116.40, 394,480.20 and 144,921.20 is: 217,274.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,116.40 : 394,480.20 = 144,921.20 : x
  2. Step 2: Convert to fraction form
    263,116.40/394,480.20 = 144,921.20/x
  3. Step 3: Cross multiply
    263,116.40x = 394,480.20 × 144,921.20
  4. Step 4: Simplify right side
    263,116.40x = 57,168,543,960.24
  5. Step 5: Solve for x
    x = 57,168,543,960.24/263,116.40
  6. Step 6: Final answer
    x = 217,274.73

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1.5x scale

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.