Finding the Fourth Proportional to 217,798.74, 300,570.66 and 121,009.68
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Solution
The fourth proportional to 217,798.74, 300,570.66 and 121,009.68 is: 166,998.02
Step by Step Solution
- Step 1: Write the proportion equation
217,798.74 : 300,570.66 = 121,009.68 : x - Step 2: Convert to fraction form
217,798.74/300,570.66 = 121,009.68/x - Step 3: Cross multiply
217,798.74x = 300,570.66 × 121,009.68 - Step 4: Simplify right side
217,798.74x = 36,371,959,383.99 - Step 5: Solve for x
x = 36,371,959,383.99/217,798.74 - Step 6: Final answer
x = 166,998.02
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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.