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Finding the Fourth Proportional to 276,027.69, 380,892.47 and 155,158.41

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Solution

The fourth proportional to 276,027.69, 380,892.47 and 155,158.41 is: 214,104.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,027.69 : 380,892.47 = 155,158.41 : x
  2. Step 2: Convert to fraction form
    276,027.69/380,892.47 = 155,158.41/x
  3. Step 3: Cross multiply
    276,027.69x = 380,892.47 × 155,158.41
  4. Step 4: Simplify right side
    276,027.69x = 59,098,669,250.38
  5. Step 5: Solve for x
    x = 59,098,669,250.38/276,027.69
  6. Step 6: Final answer
    x = 214,104.13

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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.