Home / 290,608.32-436,080.96-122,115.36

Finding the Fourth Proportional to 290,608.32, 436,080.96 and 122,115.36

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Solution

The fourth proportional to 290,608.32, 436,080.96 and 122,115.36 is: 183,243.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,608.32 : 436,080.96 = 122,115.36 : x
  2. Step 2: Convert to fraction form
    290,608.32/436,080.96 = 122,115.36/x
  3. Step 3: Cross multiply
    290,608.32x = 436,080.96 × 122,115.36
  4. Step 4: Simplify right side
    290,608.32x = 53,252,183,419.55
  5. Step 5: Solve for x
    x = 53,252,183,419.55/290,608.32
  6. Step 6: Final answer
    x = 183,243.84

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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.