Finding the Fourth Proportional to 215,743.26, 297,304.92 and 155,207.10
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Solution
The fourth proportional to 215,743.26, 297,304.92 and 155,207.10 is: 213,883.09
Step by Step Solution
- Step 1: Write the proportion equation
215,743.26 : 297,304.92 = 155,207.10 : x - Step 2: Convert to fraction form
215,743.26/297,304.92 = 155,207.10/x - Step 3: Cross multiply
215,743.26x = 297,304.92 × 155,207.10 - Step 4: Simplify right side
215,743.26x = 46,143,834,448.93 - Step 5: Solve for x
x = 46,143,834,448.93/215,743.26 - Step 6: Final answer
x = 213,883.09
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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.