Finding the Fourth Proportional to 311,427.24, 429,769.56 and 168,187.26
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Solution
The fourth proportional to 311,427.24, 429,769.56 and 168,187.26 is: 232,098.40
Step by Step Solution
- Step 1: Write the proportion equation
311,427.24 : 429,769.56 = 168,187.26 : x - Step 2: Convert to fraction form
311,427.24/429,769.56 = 168,187.26/x - Step 3: Cross multiply
311,427.24x = 429,769.56 × 168,187.26 - Step 4: Simplify right side
311,427.24x = 72,281,764,727.81 - Step 5: Solve for x
x = 72,281,764,727.81/311,427.24 - Step 6: Final answer
x = 232,098.40
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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.