Home / 276,181.56-381,149.10-208,078.38

Finding the Fourth Proportional to 276,181.56, 381,149.10 and 208,078.38

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Solution

The fourth proportional to 276,181.56, 381,149.10 and 208,078.38 is: 287,162.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,181.56 : 381,149.10 = 208,078.38 : x
  2. Step 2: Convert to fraction form
    276,181.56/381,149.10 = 208,078.38/x
  3. Step 3: Cross multiply
    276,181.56x = 381,149.10 × 208,078.38
  4. Step 4: Simplify right side
    276,181.56x = 79,308,887,266.46
  5. Step 5: Solve for x
    x = 79,308,887,266.46/276,181.56
  6. Step 6: Final answer
    x = 287,162.14

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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.