Finding the Fourth Proportional to 217,110.72, 299,577.96 and 121,621.44
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Solution
The fourth proportional to 217,110.72, 299,577.96 and 121,621.44 is: 167,818.07
Step by Step Solution
- Step 1: Write the proportion equation
217,110.72 : 299,577.96 = 121,621.44 : x - Step 2: Convert to fraction form
217,110.72/299,577.96 = 121,621.44/x - Step 3: Cross multiply
217,110.72x = 299,577.96 × 121,621.44 - Step 4: Simplify right side
217,110.72x = 36,435,102,887.46 - Step 5: Solve for x
x = 36,435,102,887.46/217,110.72 - Step 6: Final answer
x = 167,818.07
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1.5x scale
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.