Finding the Fourth Proportional to 280,449.18, 420,700.22 and 217,339.99
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Solution
The fourth proportional to 280,449.18, 420,700.22 and 217,339.99 is: 326,030.48
Step by Step Solution
- Step 1: Write the proportion equation
280,449.18 : 420,700.22 = 217,339.99 : x - Step 2: Convert to fraction form
280,449.18/420,700.22 = 217,339.99/x - Step 3: Cross multiply
280,449.18x = 420,700.22 × 217,339.99 - Step 4: Simplify right side
280,449.18x = 91,434,981,607.80 - Step 5: Solve for x
x = 91,434,981,607.80/280,449.18 - Step 6: Final answer
x = 326,030.48
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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.