Finding the Fourth Proportional to 311,437.48, 429,783.69 and 168,197.53
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Solution
The fourth proportional to 311,437.48, 429,783.69 and 168,197.53 is: 232,112.57
Step by Step Solution
- Step 1: Write the proportion equation
311,437.48 : 429,783.69 = 168,197.53 : x - Step 2: Convert to fraction form
311,437.48/429,783.69 = 168,197.53/x - Step 3: Cross multiply
311,437.48x = 429,783.69 × 168,197.53 - Step 4: Simplify right side
311,437.48x = 72,288,555,092.29 - Step 5: Solve for x
x = 72,288,555,092.29/311,437.48 - Step 6: Final answer
x = 232,112.57
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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.