Finding the Fourth Proportional to 193,390.26, 266,890.32 and 128,747.94
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Solution
The fourth proportional to 193,390.26, 266,890.32 and 128,747.94 is: 177,679.99
Step by Step Solution
- Step 1: Write the proportion equation
193,390.26 : 266,890.32 = 128,747.94 : x - Step 2: Convert to fraction form
193,390.26/266,890.32 = 128,747.94/x - Step 3: Cross multiply
193,390.26x = 266,890.32 × 128,747.94 - Step 4: Simplify right side
193,390.26x = 34,361,578,905.94 - Step 5: Solve for x
x = 34,361,578,905.94/193,390.26 - Step 6: Final answer
x = 177,679.99
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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.