Finding the Fourth Proportional to 243,418.08, 335,916.93 and 135,988.14
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Solution
The fourth proportional to 243,418.08, 335,916.93 and 135,988.14 is: 187,663.62
Step by Step Solution
- Step 1: Write the proportion equation
243,418.08 : 335,916.93 = 135,988.14 : x - Step 2: Convert to fraction form
243,418.08/335,916.93 = 135,988.14/x - Step 3: Cross multiply
243,418.08x = 335,916.93 × 135,988.14 - Step 4: Simplify right side
243,418.08x = 45,680,718,505.21 - Step 5: Solve for x
x = 45,680,718,505.21/243,418.08 - Step 6: Final answer
x = 187,663.62
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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.