Home / 276,719.28-415,079.04-213,631.54

Finding the Fourth Proportional to 276,719.28, 415,079.04 and 213,631.54

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Solution

The fourth proportional to 276,719.28, 415,079.04 and 213,631.54 is: 320,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,719.28 : 415,079.04 = 213,631.54 : x
  2. Step 2: Convert to fraction form
    276,719.28/415,079.04 = 213,631.54/x
  3. Step 3: Cross multiply
    276,719.28x = 415,079.04 × 213,631.54
  4. Step 4: Simplify right side
    276,719.28x = 88,673,974,536.92
  5. Step 5: Solve for x
    x = 88,673,974,536.92/276,719.28
  6. Step 6: Final answer
    x = 320,447.40

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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.