Finding the Fourth Proportional to 389,375.08, 584,059.99 and 209,545.12
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Solution
The fourth proportional to 389,375.08, 584,059.99 and 209,545.12 is: 314,316.26
Step by Step Solution
- Step 1: Write the proportion equation
389,375.08 : 584,059.99 = 209,545.12 : x - Step 2: Convert to fraction form
389,375.08/584,059.99 = 209,545.12/x - Step 3: Cross multiply
389,375.08x = 584,059.99 × 209,545.12 - Step 4: Simplify right side
389,375.08x = 122,386,918,707.74 - Step 5: Solve for x
x = 122,386,918,707.74/389,375.08 - Step 6: Final answer
x = 314,316.26
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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.