Finding the Fourth Proportional to 187,578.98, 258,873.36 and 107,008.28
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Solution
The fourth proportional to 187,578.98, 258,873.36 and 107,008.28 is: 147,679.62
Step by Step Solution
- Step 1: Write the proportion equation
187,578.98 : 258,873.36 = 107,008.28 : x - Step 2: Convert to fraction form
187,578.98/258,873.36 = 107,008.28/x - Step 3: Cross multiply
187,578.98x = 258,873.36 × 107,008.28 - Step 4: Simplify right side
187,578.98x = 27,701,592,991.42 - Step 5: Solve for x
x = 27,701,592,991.42/187,578.98 - Step 6: Final answer
x = 147,679.62
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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.