Finding the Fourth Proportional to 207,638.64, 311,423.94 and 57,889.08
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Solution
The fourth proportional to 207,638.64, 311,423.94 and 57,889.08 is: 86,824.14
Step by Step Solution
- Step 1: Write the proportion equation
207,638.64 : 311,423.94 = 57,889.08 : x - Step 2: Convert to fraction form
207,638.64/311,423.94 = 57,889.08/x - Step 3: Cross multiply
207,638.64x = 311,423.94 × 57,889.08 - Step 4: Simplify right side
207,638.64x = 18,028,045,376.58 - Step 5: Solve for x
x = 18,028,045,376.58/207,638.64 - Step 6: Final answer
x = 86,824.14
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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.