Finding the Fourth Proportional to 377,929.86, 521,543.16 and 208,163.99
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Solution
The fourth proportional to 377,929.86, 521,543.16 and 208,163.99 is: 287,266.27
Step by Step Solution
- Step 1: Write the proportion equation
377,929.86 : 521,543.16 = 208,163.99 : x - Step 2: Convert to fraction form
377,929.86/521,543.16 = 208,163.99/x - Step 3: Cross multiply
377,929.86x = 521,543.16 × 208,163.99 - Step 4: Simplify right side
377,929.86x = 108,566,502,535.09 - Step 5: Solve for x
x = 108,566,502,535.09/377,929.86 - Step 6: Final answer
x = 287,266.27
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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.