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Finding the Fourth Proportional to 276,522.39, 381,608.07 and 155,668.07

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Solution

The fourth proportional to 276,522.39, 381,608.07 and 155,668.07 is: 214,825.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,522.39 : 381,608.07 = 155,668.07 : x
  2. Step 2: Convert to fraction form
    276,522.39/381,608.07 = 155,668.07/x
  3. Step 3: Cross multiply
    276,522.39x = 381,608.07 × 155,668.07
  4. Step 4: Simplify right side
    276,522.39x = 59,404,191,753.32
  5. Step 5: Solve for x
    x = 59,404,191,753.32/276,522.39
  6. Step 6: Final answer
    x = 214,825.97

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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.