Home / 276,895.80-415,322.10-108,383.40

Finding the Fourth Proportional to 276,895.80, 415,322.10 and 108,383.40

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Solution

The fourth proportional to 276,895.80, 415,322.10 and 108,383.40 is: 162,566.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,895.80 : 415,322.10 = 108,383.40 : x
  2. Step 2: Convert to fraction form
    276,895.80/415,322.10 = 108,383.40/x
  3. Step 3: Cross multiply
    276,895.80x = 415,322.10 × 108,383.40
  4. Step 4: Simplify right side
    276,895.80x = 45,014,021,293.14
  5. Step 5: Solve for x
    x = 45,014,021,293.14/276,895.80
  6. Step 6: Final answer
    x = 162,566.65

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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.