Finding the Fourth Proportional to 225,953.99, 311,816.34 and 123,980.05
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Solution
The fourth proportional to 225,953.99, 311,816.34 and 123,980.05 is: 171,092.38
Step by Step Solution
- Step 1: Write the proportion equation
225,953.99 : 311,816.34 = 123,980.05 : x - Step 2: Convert to fraction form
225,953.99/311,816.34 = 123,980.05/x - Step 3: Cross multiply
225,953.99x = 311,816.34 × 123,980.05 - Step 4: Simplify right side
225,953.99x = 38,659,004,644.48 - Step 5: Solve for x
x = 38,659,004,644.48/225,953.99 - Step 6: Final answer
x = 171,092.38
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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.