Finding the Fourth Proportional to 311,554.14, 429,944.93 and 168,314.14
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Solution
The fourth proportional to 311,554.14, 429,944.93 and 168,314.14 is: 232,273.63
Step by Step Solution
- Step 1: Write the proportion equation
311,554.14 : 429,944.93 = 168,314.14 : x - Step 2: Convert to fraction form
311,554.14/429,944.93 = 168,314.14/x - Step 3: Cross multiply
311,554.14x = 429,944.93 × 168,314.14 - Step 4: Simplify right side
311,554.14x = 72,365,811,140.31 - Step 5: Solve for x
x = 72,365,811,140.31/311,554.14 - Step 6: Final answer
x = 232,273.63
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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.