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Finding the Fourth Proportional to 276,656.41, 381,802.11 and 169,247.03

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Solution

The fourth proportional to 276,656.41, 381,802.11 and 169,247.03 is: 233,570.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,656.41 : 381,802.11 = 169,247.03 : x
  2. Step 2: Convert to fraction form
    276,656.41/381,802.11 = 169,247.03/x
  3. Step 3: Cross multiply
    276,656.41x = 381,802.11 × 169,247.03
  4. Step 4: Simplify right side
    276,656.41x = 64,618,871,573.56
  5. Step 5: Solve for x
    x = 64,618,871,573.56/276,656.41
  6. Step 6: Final answer
    x = 233,570.85

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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.