Finding the Fourth Proportional to 176,578.68, 243,517.14 and 131,369.88
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Solution
The fourth proportional to 176,578.68, 243,517.14 and 131,369.88 is: 181,170.33
Step by Step Solution
- Step 1: Write the proportion equation
176,578.68 : 243,517.14 = 131,369.88 : x - Step 2: Convert to fraction form
176,578.68/243,517.14 = 131,369.88/x - Step 3: Cross multiply
176,578.68x = 243,517.14 × 131,369.88 - Step 4: Simplify right side
176,578.68x = 31,990,817,459.74 - Step 5: Solve for x
x = 31,990,817,459.74/176,578.68 - Step 6: Final answer
x = 181,170.33
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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.