Finding the Fourth Proportional to 331,336.80, 497,005.20 and 306,979.09
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Solution
The fourth proportional to 331,336.80, 497,005.20 and 306,979.09 is: 460,468.64
Step by Step Solution
- Step 1: Write the proportion equation
331,336.80 : 497,005.20 = 306,979.09 : x - Step 2: Convert to fraction form
331,336.80/497,005.20 = 306,979.09/x - Step 3: Cross multiply
331,336.80x = 497,005.20 × 306,979.09 - Step 4: Simplify right side
331,336.80x = 152,570,204,021.27 - Step 5: Solve for x
x = 152,570,204,021.27/331,336.80 - Step 6: Final answer
x = 460,468.64
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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.