Finding the Fourth Proportional to 225,705.89, 311,477.67 and 135,065.68
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Solution
The fourth proportional to 225,705.89, 311,477.67 and 135,065.68 is: 186,392.75
Step by Step Solution
- Step 1: Write the proportion equation
225,705.89 : 311,477.67 = 135,065.68 : x - Step 2: Convert to fraction form
225,705.89/311,477.67 = 135,065.68/x - Step 3: Cross multiply
225,705.89x = 311,477.67 × 135,065.68 - Step 4: Simplify right side
225,705.89x = 42,069,942,524.67 - Step 5: Solve for x
x = 42,069,942,524.67/225,705.89 - Step 6: Final answer
x = 186,392.75
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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.