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Finding the Fourth Proportional to 276,644.85, 414,870.08 and 126,956.85

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Solution

The fourth proportional to 276,644.85, 414,870.08 and 126,956.85 is: 190,390.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,644.85 : 414,870.08 = 126,956.85 : x
  2. Step 2: Convert to fraction form
    276,644.85/414,870.08 = 126,956.85/x
  3. Step 3: Cross multiply
    276,644.85x = 414,870.08 × 126,956.85
  4. Step 4: Simplify right side
    276,644.85x = 52,670,597,881.26
  5. Step 5: Solve for x
    x = 52,670,597,881.26/276,644.85
  6. Step 6: Final answer
    x = 190,390.67

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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.