Home / 276,289.72-381,161.99-158,354.38

Finding the Fourth Proportional to 276,289.72, 381,161.99 and 158,354.38

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Solution

The fourth proportional to 276,289.72, 381,161.99 and 158,354.38 is: 218,461.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,289.72 : 381,161.99 = 158,354.38 : x
  2. Step 2: Convert to fraction form
    276,289.72/381,161.99 = 158,354.38/x
  3. Step 3: Cross multiply
    276,289.72x = 381,161.99 × 158,354.38
  4. Step 4: Simplify right side
    276,289.72x = 60,358,670,606.02
  5. Step 5: Solve for x
    x = 60,358,670,606.02/276,289.72
  6. Step 6: Final answer
    x = 218,461.51

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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.