Finding the Fourth Proportional to 288,312.12, 397,612.62 and 180,893.88
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Solution
The fourth proportional to 288,312.12, 397,612.62 and 180,893.88 is: 249,471.61
Step by Step Solution
- Step 1: Write the proportion equation
288,312.12 : 397,612.62 = 180,893.88 : x - Step 2: Convert to fraction form
288,312.12/397,612.62 = 180,893.88/x - Step 3: Cross multiply
288,312.12x = 397,612.62 × 180,893.88 - Step 4: Simplify right side
288,312.12x = 71,925,689,568.77 - Step 5: Solve for x
x = 71,925,689,568.77/288,312.12 - Step 6: Final answer
x = 249,471.61
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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.