Home / 301,278.58-451,915.80-76,636.96

Finding the Fourth Proportional to 301,278.58, 451,915.80 and 76,636.96

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Solution

The fourth proportional to 301,278.58, 451,915.80 and 76,636.96 is: 114,954.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,278.58 : 451,915.80 = 76,636.96 : x
  2. Step 2: Convert to fraction form
    301,278.58/451,915.80 = 76,636.96/x
  3. Step 3: Cross multiply
    301,278.58x = 451,915.80 × 76,636.96
  4. Step 4: Simplify right side
    301,278.58x = 34,633,453,087.97
  5. Step 5: Solve for x
    x = 34,633,453,087.97/301,278.58
  6. Step 6: Final answer
    x = 114,954.91

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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.