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Finding the Fourth Proportional to 276,592.78, 380,894.97 and 240,277.78

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Solution

The fourth proportional to 276,592.78, 380,894.97 and 240,277.78 is: 330,885.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,592.78 : 380,894.97 = 240,277.78 : x
  2. Step 2: Convert to fraction form
    276,592.78/380,894.97 = 240,277.78/x
  3. Step 3: Cross multiply
    276,592.78x = 380,894.97 × 240,277.78
  4. Step 4: Simplify right side
    276,592.78x = 91,520,597,804.77
  5. Step 5: Solve for x
    x = 91,520,597,804.77/276,592.78
  6. Step 6: Final answer
    x = 330,885.71

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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.