Finding the Fourth Proportional to 208,402.13, 287,593.16 and 112,908.62
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Solution
The fourth proportional to 208,402.13, 287,593.16 and 112,908.62 is: 155,812.93
Step by Step Solution
- Step 1: Write the proportion equation
208,402.13 : 287,593.16 = 112,908.62 : x - Step 2: Convert to fraction form
208,402.13/287,593.16 = 112,908.62/x - Step 3: Cross multiply
208,402.13x = 287,593.16 × 112,908.62 - Step 4: Simplify right side
208,402.13x = 32,471,744,814.53 - Step 5: Solve for x
x = 32,471,744,814.53/208,402.13 - Step 6: Final answer
x = 155,812.93
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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.