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Finding the Fourth Proportional to 301,078.53, 451,693.73 and 212,505.03

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Solution

The fourth proportional to 301,078.53, 451,693.73 and 212,505.03 is: 318,811.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,078.53 : 451,693.73 = 212,505.03 : x
  2. Step 2: Convert to fraction form
    301,078.53/451,693.73 = 212,505.03/x
  3. Step 3: Cross multiply
    301,078.53x = 451,693.73 × 212,505.03
  4. Step 4: Simplify right side
    301,078.53x = 95,987,190,175.72
  5. Step 5: Solve for x
    x = 95,987,190,175.72/301,078.53
  6. Step 6: Final answer
    x = 318,811.14

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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.