Home / 225,403.49-311,060.64-123,427.33

Finding the Fourth Proportional to 225,403.49, 311,060.64 and 123,427.33

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Solution

The fourth proportional to 225,403.49, 311,060.64 and 123,427.33 is: 170,331.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,403.49 : 311,060.64 = 123,427.33 : x
  2. Step 2: Convert to fraction form
    225,403.49/311,060.64 = 123,427.33/x
  3. Step 3: Cross multiply
    225,403.49x = 311,060.64 × 123,427.33
  4. Step 4: Simplify right side
    225,403.49x = 38,393,384,263.29
  5. Step 5: Solve for x
    x = 38,393,384,263.29/225,403.49
  6. Step 6: Final answer
    x = 170,331.81

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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.