Home / 263,313.92-395,029.32-103,405.28

Finding the Fourth Proportional to 263,313.92, 395,029.32 and 103,405.28

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Solution

The fourth proportional to 263,313.92, 395,029.32 and 103,405.28 is: 155,130.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,313.92 : 395,029.32 = 103,405.28 : x
  2. Step 2: Convert to fraction form
    263,313.92/395,029.32 = 103,405.28/x
  3. Step 3: Cross multiply
    263,313.92x = 395,029.32 × 103,405.28
  4. Step 4: Simplify right side
    263,313.92x = 40,848,117,442.81
  5. Step 5: Solve for x
    x = 40,848,117,442.81/263,313.92
  6. Step 6: Final answer
    x = 155,130.87

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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.