Finding the Fourth Proportional to 209,176.95, 288,666.42 and 113,683.65
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Solution
The fourth proportional to 209,176.95, 288,666.42 and 113,683.65 is: 156,884.65
Step by Step Solution
- Step 1: Write the proportion equation
209,176.95 : 288,666.42 = 113,683.65 : x - Step 2: Convert to fraction form
209,176.95/288,666.42 = 113,683.65/x - Step 3: Cross multiply
209,176.95x = 288,666.42 × 113,683.65 - Step 4: Simplify right side
209,176.95x = 32,816,652,258.03 - Step 5: Solve for x
x = 32,816,652,258.03/209,176.95 - Step 6: Final answer
x = 156,884.65
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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.