Home / 225,455.51-311,134.19-123,485.27

Finding the Fourth Proportional to 225,455.51, 311,134.19 and 123,485.27

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Solution

The fourth proportional to 225,455.51, 311,134.19 and 123,485.27 is: 170,412.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,455.51 : 311,134.19 = 123,485.27 : x
  2. Step 2: Convert to fraction form
    225,455.51/311,134.19 = 123,485.27/x
  3. Step 3: Cross multiply
    225,455.51x = 311,134.19 × 123,485.27
  4. Step 4: Simplify right side
    225,455.51x = 38,420,487,285.28
  5. Step 5: Solve for x
    x = 38,420,487,285.28/225,455.51
  6. Step 6: Final answer
    x = 170,412.73

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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.