Home / 451,741.93-677,172.25-215,021.05

Finding the Fourth Proportional to 451,741.93, 677,172.25 and 215,021.05

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Solution

The fourth proportional to 451,741.93, 677,172.25 and 215,021.05 is: 322,321.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,741.93 : 677,172.25 = 215,021.05 : x
  2. Step 2: Convert to fraction form
    451,741.93/677,172.25 = 215,021.05/x
  3. Step 3: Cross multiply
    451,741.93x = 677,172.25 × 215,021.05
  4. Step 4: Simplify right side
    451,741.93x = 145,606,286,801.71
  5. Step 5: Solve for x
    x = 145,606,286,801.71/451,741.93
  6. Step 6: Final answer
    x = 322,321.83

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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.