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Finding the Fourth Proportional to 276,329.91, 414,494.84 and 76,650.31

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Solution

The fourth proportional to 276,329.91, 414,494.84 and 76,650.31 is: 114,975.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,329.91 : 414,494.84 = 76,650.31 : x
  2. Step 2: Convert to fraction form
    276,329.91/414,494.84 = 76,650.31/x
  3. Step 3: Cross multiply
    276,329.91x = 414,494.84 × 76,650.31
  4. Step 4: Simplify right side
    276,329.91x = 31,771,157,134.79
  5. Step 5: Solve for x
    x = 31,771,157,134.79/276,329.91
  6. Step 6: Final answer
    x = 114,975.46

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Similar ratio
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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.