Finding the Fourth Proportional to 326,020.10, 488,252.55 and 159,613.70
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Solution
The fourth proportional to 326,020.10, 488,252.55 and 159,613.70 is: 239,039.85
Step by Step Solution
- Step 1: Write the proportion equation
326,020.10 : 488,252.55 = 159,613.70 : x - Step 2: Convert to fraction form
326,020.10/488,252.55 = 159,613.70/x - Step 3: Cross multiply
326,020.10x = 488,252.55 × 159,613.70 - Step 4: Simplify right side
326,020.10x = 77,931,796,039.94 - Step 5: Solve for x
x = 77,931,796,039.94/326,020.10 - Step 6: Final answer
x = 239,039.85
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1.5x scale
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.