Finding the Fourth Proportional to 306,696.31, 423,211.21 and 226,167.19
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Solution
The fourth proportional to 306,696.31, 423,211.21 and 226,167.19 is: 312,088.82
Step by Step Solution
- Step 1: Write the proportion equation
306,696.31 : 423,211.21 = 226,167.19 : x - Step 2: Convert to fraction form
306,696.31/423,211.21 = 226,167.19/x - Step 3: Cross multiply
306,696.31x = 423,211.21 × 226,167.19 - Step 4: Simplify right side
306,696.31x = 95,716,490,142.20 - Step 5: Solve for x
x = 95,716,490,142.20/306,696.31 - Step 6: Final answer
x = 312,088.82
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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.