Finding the Fourth Proportional to 242,916.69, 335,225.62 and 135,493.68
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Solution
The fourth proportional to 242,916.69, 335,225.62 and 135,493.68 is: 186,981.61
Step by Step Solution
- Step 1: Write the proportion equation
242,916.69 : 335,225.62 = 135,493.68 : x - Step 2: Convert to fraction form
242,916.69/335,225.62 = 135,493.68/x - Step 3: Cross multiply
242,916.69x = 335,225.62 × 135,493.68 - Step 4: Simplify right side
242,916.69x = 45,420,952,884.08 - Step 5: Solve for x
x = 45,420,952,884.08/242,916.69 - Step 6: Final answer
x = 186,981.61
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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.