Finding the Fourth Proportional to 193,569.80, 290,124.30 and 81,249.80
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Solution
The fourth proportional to 193,569.80, 290,124.30 and 81,249.80 is: 121,777.99
Step by Step Solution
- Step 1: Write the proportion equation
193,569.80 : 290,124.30 = 81,249.80 : x - Step 2: Convert to fraction form
193,569.80/290,124.30 = 81,249.80/x - Step 3: Cross multiply
193,569.80x = 290,124.30 × 81,249.80 - Step 4: Simplify right side
193,569.80x = 23,572,541,350.14 - Step 5: Solve for x
x = 23,572,541,350.14/193,569.80 - Step 6: Final answer
x = 121,777.99
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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.