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Finding the Fourth Proportional to 225,365.37, 310,992.39 and 123,371.28

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Solution

The fourth proportional to 225,365.37, 310,992.39 and 123,371.28 is: 170,245.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,365.37 : 310,992.39 = 123,371.28 : x
  2. Step 2: Convert to fraction form
    225,365.37/310,992.39 = 123,371.28/x
  3. Step 3: Cross multiply
    225,365.37x = 310,992.39 × 123,371.28
  4. Step 4: Simplify right side
    225,365.37x = 38,367,530,390.78
  5. Step 5: Solve for x
    x = 38,367,530,390.78/225,365.37
  6. Step 6: Final answer
    x = 170,245.90

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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.