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Finding the Fourth Proportional to 276,452.40, 381,516.58 and 155,601.50

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Solution

The fourth proportional to 276,452.40, 381,516.58 and 155,601.50 is: 214,736.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,452.40 : 381,516.58 = 155,601.50 : x
  2. Step 2: Convert to fraction form
    276,452.40/381,516.58 = 155,601.50/x
  3. Step 3: Cross multiply
    276,452.40x = 381,516.58 × 155,601.50
  4. Step 4: Simplify right side
    276,452.40x = 59,364,552,122.87
  5. Step 5: Solve for x
    x = 59,364,552,122.87/276,452.40
  6. Step 6: Final answer
    x = 214,736.98

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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.