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Finding the Fourth Proportional to 276,860.10, 415,324.72 and 108,358.64

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Solution

The fourth proportional to 276,860.10, 415,324.72 and 108,358.64 is: 162,551.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,860.10 : 415,324.72 = 108,358.64 : x
  2. Step 2: Convert to fraction form
    276,860.10/415,324.72 = 108,358.64/x
  3. Step 3: Cross multiply
    276,860.10x = 415,324.72 × 108,358.64
  4. Step 4: Simplify right side
    276,860.10x = 45,004,021,817.58
  5. Step 5: Solve for x
    x = 45,004,021,817.58/276,860.10
  6. Step 6: Final answer
    x = 162,551.49

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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.