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Finding the Fourth Proportional to 225,855.93, 311,679.06 and 123,879.30

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Solution

The fourth proportional to 225,855.93, 311,679.06 and 123,879.30 is: 170,952.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,855.93 : 311,679.06 = 123,879.30 : x
  2. Step 2: Convert to fraction form
    225,855.93/311,679.06 = 123,879.30/x
  3. Step 3: Cross multiply
    225,855.93x = 311,679.06 × 123,879.30
  4. Step 4: Simplify right side
    225,855.93x = 38,610,583,777.46
  5. Step 5: Solve for x
    x = 38,610,583,777.46/225,855.93
  6. Step 6: Final answer
    x = 170,952.27

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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.