Finding the Fourth Proportional to 288,660.46, 430,876.89 and 254,572.78
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Solution
The fourth proportional to 288,660.46, 430,876.89 and 254,572.78 is: 379,994.99
Step by Step Solution
- Step 1: Write the proportion equation
288,660.46 : 430,876.89 = 254,572.78 : x - Step 2: Convert to fraction form
288,660.46/430,876.89 = 254,572.78/x - Step 3: Cross multiply
288,660.46x = 430,876.89 × 254,572.78 - Step 4: Simplify right side
288,660.46x = 109,689,527,725.05 - Step 5: Solve for x
x = 109,689,527,725.05/288,660.46 - Step 6: Final answer
x = 379,994.99
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.