Finding the Fourth Proportional to 212,899.20, 293,862.24 and 149,252.64
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Solution
The fourth proportional to 212,899.20, 293,862.24 and 149,252.64 is: 206,011.65
Step by Step Solution
- Step 1: Write the proportion equation
212,899.20 : 293,862.24 = 149,252.64 : x - Step 2: Convert to fraction form
212,899.20/293,862.24 = 149,252.64/x - Step 3: Cross multiply
212,899.20x = 293,862.24 × 149,252.64 - Step 4: Simplify right side
212,899.20x = 43,859,715,116.31 - Step 5: Solve for x
x = 43,859,715,116.31/212,899.20 - Step 6: Final answer
x = 206,011.65
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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.