Finding the Fourth Proportional to 217,055.16, 299,536.11 and 121,561.92
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Solution
The fourth proportional to 217,055.16, 299,536.11 and 121,561.92 is: 167,755.44
Step by Step Solution
- Step 1: Write the proportion equation
217,055.16 : 299,536.11 = 121,561.92 : x - Step 2: Convert to fraction form
217,055.16/299,536.11 = 121,561.92/x - Step 3: Cross multiply
217,055.16x = 299,536.11 × 121,561.92 - Step 4: Simplify right side
217,055.16x = 36,412,184,640.93 - Step 5: Solve for x
x = 36,412,184,640.93/217,055.16 - Step 6: Final answer
x = 167,755.44
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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.