Finding the Fourth Proportional to 217,207.23, 299,754.09 and 121,710.39
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Solution
The fourth proportional to 217,207.23, 299,754.09 and 121,710.39 is: 167,964.88
Step by Step Solution
- Step 1: Write the proportion equation
217,207.23 : 299,754.09 = 121,710.39 : x - Step 2: Convert to fraction form
217,207.23/299,754.09 = 121,710.39/x - Step 3: Cross multiply
217,207.23x = 299,754.09 × 121,710.39 - Step 4: Simplify right side
217,207.23x = 36,483,187,198.00 - Step 5: Solve for x
x = 36,483,187,198.00/217,207.23 - Step 6: Final answer
x = 167,964.88
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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.