Finding the Fourth Proportional to 215,929.80, 323,894.70 and 189,685.80
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Solution
The fourth proportional to 215,929.80, 323,894.70 and 189,685.80 is: 284,528.70
Step by Step Solution
- Step 1: Write the proportion equation
215,929.80 : 323,894.70 = 189,685.80 : x - Step 2: Convert to fraction form
215,929.80/323,894.70 = 189,685.80/x - Step 3: Cross multiply
215,929.80x = 323,894.70 × 189,685.80 - Step 4: Simplify right side
215,929.80x = 61,438,225,285.26 - Step 5: Solve for x
x = 61,438,225,285.26/215,929.80 - Step 6: Final answer
x = 284,528.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.