Finding the Fourth Proportional to 206,872.65, 310,302.79 and 57,122.08
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Solution
The fourth proportional to 206,872.65, 310,302.79 and 57,122.08 is: 85,681.41
Step by Step Solution
- Step 1: Write the proportion equation
206,872.65 : 310,302.79 = 57,122.08 : x - Step 2: Convert to fraction form
206,872.65/310,302.79 = 57,122.08/x - Step 3: Cross multiply
206,872.65x = 310,302.79 × 57,122.08 - Step 4: Simplify right side
206,872.65x = 17,725,139,876.04 - Step 5: Solve for x
x = 17,725,139,876.04/206,872.65 - Step 6: Final answer
x = 85,681.41
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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.