Finding the Fourth Proportional to 226,078.80, 311,992.52 and 124,113.68
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Solution
The fourth proportional to 226,078.80, 311,992.52 and 124,113.68 is: 171,278.95
Step by Step Solution
- Step 1: Write the proportion equation
226,078.80 : 311,992.52 = 124,113.68 : x - Step 2: Convert to fraction form
226,078.80/311,992.52 = 124,113.68/x - Step 3: Cross multiply
226,078.80x = 311,992.52 × 124,113.68 - Step 4: Simplify right side
226,078.80x = 38,722,539,789.67 - Step 5: Solve for x
x = 38,722,539,789.67/226,078.80 - Step 6: Final answer
x = 171,278.95
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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.