Finding the Fourth Proportional to 288,440.80, 397,485.96 and 207,715.80
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Solution
The fourth proportional to 288,440.80, 397,485.96 and 207,715.80 is: 286,242.84
Step by Step Solution
- Step 1: Write the proportion equation
288,440.80 : 397,485.96 = 207,715.80 : x - Step 2: Convert to fraction form
288,440.80/397,485.96 = 207,715.80/x - Step 3: Cross multiply
288,440.80x = 397,485.96 × 207,715.80 - Step 4: Simplify right side
288,440.80x = 82,564,114,170.17 - Step 5: Solve for x
x = 82,564,114,170.17/288,440.80 - Step 6: Final answer
x = 286,242.84
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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.