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Finding the Fourth Proportional to 276,452.52, 381,516.75 and 155,601.63

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Solution

The fourth proportional to 276,452.52, 381,516.75 and 155,601.63 is: 214,737.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,452.52 : 381,516.75 = 155,601.63 : x
  2. Step 2: Convert to fraction form
    276,452.52/381,516.75 = 155,601.63/x
  3. Step 3: Cross multiply
    276,452.52x = 381,516.75 × 155,601.63
  4. Step 4: Simplify right side
    276,452.52x = 59,364,628,172.30
  5. Step 5: Solve for x
    x = 59,364,628,172.30/276,452.52
  6. Step 6: Final answer
    x = 214,737.16

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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.