Home / 263,285.10-394,927.65-260,660.70

Finding the Fourth Proportional to 263,285.10, 394,927.65 and 260,660.70

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Solution

The fourth proportional to 263,285.10, 394,927.65 and 260,660.70 is: 390,991.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,285.10 : 394,927.65 = 260,660.70 : x
  2. Step 2: Convert to fraction form
    263,285.10/394,927.65 = 260,660.70/x
  3. Step 3: Cross multiply
    263,285.10x = 394,927.65 × 260,660.70
  4. Step 4: Simplify right side
    263,285.10x = 102,942,117,698.36
  5. Step 5: Solve for x
    x = 102,942,117,698.36/263,285.10
  6. Step 6: Final answer
    x = 390,991.05

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Similar ratio
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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.