Home / 395,635.12-545,975.72-214,351.55

Finding the Fourth Proportional to 395,635.12, 545,975.72 and 214,351.55

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Solution

The fourth proportional to 395,635.12, 545,975.72 and 214,351.55 is: 295,804.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,635.12 : 545,975.72 = 214,351.55 : x
  2. Step 2: Convert to fraction form
    395,635.12/545,975.72 = 214,351.55/x
  3. Step 3: Cross multiply
    395,635.12x = 545,975.72 × 214,351.55
  4. Step 4: Simplify right side
    395,635.12x = 117,030,741,844.37
  5. Step 5: Solve for x
    x = 117,030,741,844.37/395,635.12
  6. Step 6: Final answer
    x = 295,804.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.