Finding the Fourth Proportional to 400,845.68, 553,160.18 and 217,082.75
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Solution
The fourth proportional to 400,845.68, 553,160.18 and 217,082.75 is: 299,570.49
Step by Step Solution
- Step 1: Write the proportion equation
400,845.68 : 553,160.18 = 217,082.75 : x - Step 2: Convert to fraction form
400,845.68/553,160.18 = 217,082.75/x - Step 3: Cross multiply
400,845.68x = 553,160.18 × 217,082.75 - Step 4: Simplify right side
400,845.68x = 120,081,534,990.50 - Step 5: Solve for x
x = 120,081,534,990.50/400,845.68 - Step 6: Final answer
x = 299,570.49
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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.