Home / 263,564.20-395,346.30-121,409.20

Finding the Fourth Proportional to 263,564.20, 395,346.30 and 121,409.20

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Solution

The fourth proportional to 263,564.20, 395,346.30 and 121,409.20 is: 182,113.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,564.20 : 395,346.30 = 121,409.20 : x
  2. Step 2: Convert to fraction form
    263,564.20/395,346.30 = 121,409.20/x
  3. Step 3: Cross multiply
    263,564.20x = 395,346.30 × 121,409.20
  4. Step 4: Simplify right side
    263,564.20x = 47,998,678,005.96
  5. Step 5: Solve for x
    x = 47,998,678,005.96/263,564.20
  6. Step 6: Final answer
    x = 182,113.80

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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.