Finding the Fourth Proportional to 280,859.99, 387,543.43 and 159,985.92
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Solution
The fourth proportional to 280,859.99, 387,543.43 and 159,985.92 is: 220,755.87
Step by Step Solution
- Step 1: Write the proportion equation
280,859.99 : 387,543.43 = 159,985.92 : x - Step 2: Convert to fraction form
280,859.99/387,543.43 = 159,985.92/x - Step 3: Cross multiply
280,859.99x = 387,543.43 × 159,985.92 - Step 4: Simplify right side
280,859.99x = 62,001,491,788.54 - Step 5: Solve for x
x = 62,001,491,788.54/280,859.99 - Step 6: Final answer
x = 220,755.87
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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.