Finding the Fourth Proportional to 193,887.81, 267,590.70 and 109,021.23
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Solution
The fourth proportional to 193,887.81, 267,590.70 and 109,021.23 is: 150,463.65
Step by Step Solution
- Step 1: Write the proportion equation
193,887.81 : 267,590.70 = 109,021.23 : x - Step 2: Convert to fraction form
193,887.81/267,590.70 = 109,021.23/x - Step 3: Cross multiply
193,887.81x = 267,590.70 × 109,021.23 - Step 4: Simplify right side
193,887.81x = 29,173,067,250.56 - Step 5: Solve for x
x = 29,173,067,250.56/193,887.81 - Step 6: Final answer
x = 150,463.65
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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.