Finding the Fourth Proportional to 288,864.80, 398,625.99 and 159,808.13
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Solution
The fourth proportional to 288,864.80, 398,625.99 and 159,808.13 is: 220,531.11
Step by Step Solution
- Step 1: Write the proportion equation
288,864.80 : 398,625.99 = 159,808.13 : x - Step 2: Convert to fraction form
288,864.80/398,625.99 = 159,808.13/x - Step 3: Cross multiply
288,864.80x = 398,625.99 × 159,808.13 - Step 4: Simplify right side
288,864.80x = 63,703,673,832.66 - Step 5: Solve for x
x = 63,703,673,832.66/288,864.80 - Step 6: Final answer
x = 220,531.11
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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.