Home / 263,025.40-394,343.70-144,830.20

Finding the Fourth Proportional to 263,025.40, 394,343.70 and 144,830.20

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Solution

The fourth proportional to 263,025.40, 394,343.70 and 144,830.20 is: 217,138.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,025.40 : 394,343.70 = 144,830.20 : x
  2. Step 2: Convert to fraction form
    263,025.40/394,343.70 = 144,830.20/x
  3. Step 3: Cross multiply
    263,025.40x = 394,343.70 × 144,830.20
  4. Step 4: Simplify right side
    263,025.40x = 57,112,876,939.74
  5. Step 5: Solve for x
    x = 57,112,876,939.74/263,025.40
  6. Step 6: Final answer
    x = 217,138.26

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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.