Finding the Fourth Proportional to 209,082.76, 288,513.39 and 118,420.63
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Solution
The fourth proportional to 209,082.76, 288,513.39 and 118,420.63 is: 163,408.68
Step by Step Solution
- Step 1: Write the proportion equation
209,082.76 : 288,513.39 = 118,420.63 : x - Step 2: Convert to fraction form
209,082.76/288,513.39 = 118,420.63/x - Step 3: Cross multiply
209,082.76x = 288,513.39 × 118,420.63 - Step 4: Simplify right side
209,082.76x = 34,165,937,407.24 - Step 5: Solve for x
x = 34,165,937,407.24/209,082.76 - Step 6: Final answer
x = 163,408.68
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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.