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Finding the Fourth Proportional to 301,148.40, 451,797.12 and 212,575.44

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Solution

The fourth proportional to 301,148.40, 451,797.12 and 212,575.44 is: 318,915.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,148.40 : 451,797.12 = 212,575.44 : x
  2. Step 2: Convert to fraction form
    301,148.40/451,797.12 = 212,575.44/x
  3. Step 3: Cross multiply
    301,148.40x = 451,797.12 × 212,575.44
  4. Step 4: Simplify right side
    301,148.40x = 96,040,971,574.73
  5. Step 5: Solve for x
    x = 96,040,971,574.73/301,148.40
  6. Step 6: Final answer
    x = 318,915.76

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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.