Finding the Fourth Proportional to 259,545.65, 389,316.12 and 82,052.70
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Solution
The fourth proportional to 259,545.65, 389,316.12 and 82,052.70 is: 123,078.31
Step by Step Solution
- Step 1: Write the proportion equation
259,545.65 : 389,316.12 = 82,052.70 : x - Step 2: Convert to fraction form
259,545.65/389,316.12 = 82,052.70/x - Step 3: Cross multiply
259,545.65x = 389,316.12 × 82,052.70 - Step 4: Simplify right side
259,545.65x = 31,944,438,799.52 - Step 5: Solve for x
x = 31,944,438,799.52/259,545.65 - Step 6: Final answer
x = 123,078.31
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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.