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Finding the Fourth Proportional to 276,123.67, 381,729.72 and 273,597.69

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Solution

The fourth proportional to 276,123.67, 381,729.72 and 273,597.69 is: 378,237.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,123.67 : 381,729.72 = 273,597.69 : x
  2. Step 2: Convert to fraction form
    276,123.67/381,729.72 = 273,597.69/x
  3. Step 3: Cross multiply
    276,123.67x = 381,729.72 × 273,597.69
  4. Step 4: Simplify right side
    276,123.67x = 104,440,369,596.35
  5. Step 5: Solve for x
    x = 104,440,369,596.35/276,123.67
  6. Step 6: Final answer
    x = 378,237.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.