Home / 276,105.81-381,057.39-153,610.32

Finding the Fourth Proportional to 276,105.81, 381,057.39 and 153,610.32

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Solution

The fourth proportional to 276,105.81, 381,057.39 and 153,610.32 is: 211,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,105.81 : 381,057.39 = 153,610.32 : x
  2. Step 2: Convert to fraction form
    276,105.81/381,057.39 = 153,610.32/x
  3. Step 3: Cross multiply
    276,105.81x = 381,057.39 × 153,610.32
  4. Step 4: Simplify right side
    276,105.81x = 58,534,347,616.26
  5. Step 5: Solve for x
    x = 58,534,347,616.26/276,105.81
  6. Step 6: Final answer
    x = 211,999.70

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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.