Finding the Fourth Proportional to 245,711.40, 368,516.70 and 68,173.80
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Solution
The fourth proportional to 245,711.40, 368,516.70 and 68,173.80 is: 102,246.72
Step by Step Solution
- Step 1: Write the proportion equation
245,711.40 : 368,516.70 = 68,173.80 : x - Step 2: Convert to fraction form
245,711.40/368,516.70 = 68,173.80/x - Step 3: Cross multiply
245,711.40x = 368,516.70 × 68,173.80 - Step 4: Simplify right side
245,711.40x = 25,123,183,802.46 - Step 5: Solve for x
x = 25,123,183,802.46/245,711.40 - Step 6: Final answer
x = 102,246.72
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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.