Finding the Fourth Proportional to 216,990.17, 299,449.52 and 125,107.62
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Solution
The fourth proportional to 216,990.17, 299,449.52 and 125,107.62 is: 172,650.29
Step by Step Solution
- Step 1: Write the proportion equation
216,990.17 : 299,449.52 = 125,107.62 : x - Step 2: Convert to fraction form
216,990.17/299,449.52 = 125,107.62/x - Step 3: Cross multiply
216,990.17x = 299,449.52 × 125,107.62 - Step 4: Simplify right side
216,990.17x = 37,463,416,757.34 - Step 5: Solve for x
x = 37,463,416,757.34/216,990.17 - Step 6: Final answer
x = 172,650.29
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.