Finding the Fourth Proportional to 225,711.18, 311,398.98 and 135,069.72
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Solution
The fourth proportional to 225,711.18, 311,398.98 and 135,069.72 is: 186,346.87
Step by Step Solution
- Step 1: Write the proportion equation
225,711.18 : 311,398.98 = 135,069.72 : x - Step 2: Convert to fraction form
225,711.18/311,398.98 = 135,069.72/x - Step 3: Cross multiply
225,711.18x = 311,398.98 × 135,069.72 - Step 4: Simplify right side
225,711.18x = 42,060,573,036.89 - Step 5: Solve for x
x = 42,060,573,036.89/225,711.18 - Step 6: Final answer
x = 186,346.87
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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.