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Finding the Fourth Proportional to 276,381.64, 414,795.82 and 143,299.96

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Solution

The fourth proportional to 276,381.64, 414,795.82 and 143,299.96 is: 215,065.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,381.64 : 414,795.82 = 143,299.96 : x
  2. Step 2: Convert to fraction form
    276,381.64/414,795.82 = 143,299.96/x
  3. Step 3: Cross multiply
    276,381.64x = 414,795.82 × 143,299.96
  4. Step 4: Simplify right side
    276,381.64x = 59,440,224,414.17
  5. Step 5: Solve for x
    x = 59,440,224,414.17/276,381.64
  6. Step 6: Final answer
    x = 215,065.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.