Finding the Fourth Proportional to 298,719.17, 412,384.79 and 202,431.71
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Solution
The fourth proportional to 298,719.17, 412,384.79 and 202,431.71 is: 279,458.99
Step by Step Solution
- Step 1: Write the proportion equation
298,719.17 : 412,384.79 = 202,431.71 : x - Step 2: Convert to fraction form
298,719.17/412,384.79 = 202,431.71/x - Step 3: Cross multiply
298,719.17x = 412,384.79 × 202,431.71 - Step 4: Simplify right side
298,719.17x = 83,479,755,143.61 - Step 5: Solve for x
x = 83,479,755,143.61/298,719.17 - Step 6: Final answer
x = 279,458.99
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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.