Finding the Fourth Proportional to 231,397.44, 319,322.08 and 129,423.10
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Solution
The fourth proportional to 231,397.44, 319,322.08 and 129,423.10 is: 178,600.31
Step by Step Solution
- Step 1: Write the proportion equation
231,397.44 : 319,322.08 = 129,423.10 : x - Step 2: Convert to fraction form
231,397.44/319,322.08 = 129,423.10/x - Step 3: Cross multiply
231,397.44x = 319,322.08 × 129,423.10 - Step 4: Simplify right side
231,397.44x = 41,327,653,492.05 - Step 5: Solve for x
x = 41,327,653,492.05/231,397.44 - Step 6: Final answer
x = 178,600.31
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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.