Home / 263,927.40-395,631.90-130,828.20

Finding the Fourth Proportional to 263,927.40, 395,631.90 and 130,828.20

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Solution

The fourth proportional to 263,927.40, 395,631.90 and 130,828.20 is: 196,113.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,927.40 : 395,631.90 = 130,828.20 : x
  2. Step 2: Convert to fraction form
    263,927.40/395,631.90 = 130,828.20/x
  3. Step 3: Cross multiply
    263,927.40x = 395,631.90 × 130,828.20
  4. Step 4: Simplify right side
    263,927.40x = 51,759,809,339.58
  5. Step 5: Solve for x
    x = 51,759,809,339.58/263,927.40
  6. Step 6: Final answer
    x = 196,113.82

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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.