Finding the Fourth Proportional to 312,427.56, 468,544.40 and 112,721.98
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Solution
The fourth proportional to 312,427.56, 468,544.40 and 112,721.98 is: 169,047.99
Step by Step Solution
- Step 1: Write the proportion equation
312,427.56 : 468,544.40 = 112,721.98 : x - Step 2: Convert to fraction form
312,427.56/468,544.40 = 112,721.98/x - Step 3: Cross multiply
312,427.56x = 468,544.40 × 112,721.98 - Step 4: Simplify right side
312,427.56x = 52,815,252,485.91 - Step 5: Solve for x
x = 52,815,252,485.91/312,427.56 - Step 6: Final answer
x = 169,047.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.