Finding the Fourth Proportional to 217,113.22, 299,581.41 and 121,623.94
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Solution
The fourth proportional to 217,113.22, 299,581.41 and 121,623.94 is: 167,821.52
Step by Step Solution
- Step 1: Write the proportion equation
217,113.22 : 299,581.41 = 121,623.94 : x - Step 2: Convert to fraction form
217,113.22/299,581.41 = 121,623.94/x - Step 3: Cross multiply
217,113.22x = 299,581.41 × 121,623.94 - Step 4: Simplify right side
217,113.22x = 36,436,271,434.96 - Step 5: Solve for x
x = 36,436,271,434.96/217,113.22 - Step 6: Final answer
x = 167,821.52
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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.