Home / 301,261.45-451,890.21-76,619.94

Finding the Fourth Proportional to 301,261.45, 451,890.21 and 76,619.94

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Solution

The fourth proportional to 301,261.45, 451,890.21 and 76,619.94 is: 114,929.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,261.45 : 451,890.21 = 76,619.94 : x
  2. Step 2: Convert to fraction form
    301,261.45/451,890.21 = 76,619.94/x
  3. Step 3: Cross multiply
    301,261.45x = 451,890.21 × 76,619.94
  4. Step 4: Simplify right side
    301,261.45x = 34,623,800,776.79
  5. Step 5: Solve for x
    x = 34,623,800,776.79/301,261.45
  6. Step 6: Final answer
    x = 114,929.41

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1.5x scale

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.