Finding the Fourth Proportional to 217,713.67, 300,428.27 and 122,201.91
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Solution
The fourth proportional to 217,713.67, 300,428.27 and 122,201.91 is: 168,629.32
Step by Step Solution
- Step 1: Write the proportion equation
217,713.67 : 300,428.27 = 122,201.91 : x - Step 2: Convert to fraction form
217,713.67/300,428.27 = 122,201.91/x - Step 3: Cross multiply
217,713.67x = 300,428.27 × 122,201.91 - Step 4: Simplify right side
217,713.67x = 36,712,908,259.24 - Step 5: Solve for x
x = 36,712,908,259.24/217,713.67 - Step 6: Final answer
x = 168,629.32
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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.