Finding the Fourth Proportional to 306,514.80, 459,772.20 and 272,689.20
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Solution
The fourth proportional to 306,514.80, 459,772.20 and 272,689.20 is: 409,033.80
Step by Step Solution
- Step 1: Write the proportion equation
306,514.80 : 459,772.20 = 272,689.20 : x - Step 2: Convert to fraction form
306,514.80/459,772.20 = 272,689.20/x - Step 3: Cross multiply
306,514.80x = 459,772.20 × 272,689.20 - Step 4: Simplify right side
306,514.80x = 125,374,913,400.24 - Step 5: Solve for x
x = 125,374,913,400.24/306,514.80 - Step 6: Final answer
x = 409,033.80
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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.