Finding the Fourth Proportional to 217,993.05, 300,827.70 and 122,515.92
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Solution
The fourth proportional to 217,993.05, 300,827.70 and 122,515.92 is: 169,070.45
Step by Step Solution
- Step 1: Write the proportion equation
217,993.05 : 300,827.70 = 122,515.92 : x - Step 2: Convert to fraction form
217,993.05/300,827.70 = 122,515.92/x - Step 3: Cross multiply
217,993.05x = 300,827.70 × 122,515.92 - Step 4: Simplify right side
217,993.05x = 36,856,182,426.98 - Step 5: Solve for x
x = 36,856,182,426.98/217,993.05 - Step 6: Final answer
x = 169,070.45
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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.