Finding the Fourth Proportional to 288,890.75, 398,681.14 and 159,827.18
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Solution
The fourth proportional to 288,890.75, 398,681.14 and 159,827.18 is: 220,568.09
Step by Step Solution
- Step 1: Write the proportion equation
288,890.75 : 398,681.14 = 159,827.18 : x - Step 2: Convert to fraction form
288,890.75/398,681.14 = 159,827.18/x - Step 3: Cross multiply
288,890.75x = 398,681.14 × 159,827.18 - Step 4: Simplify right side
288,890.75x = 63,720,080,232.09 - Step 5: Solve for x
x = 63,720,080,232.09/288,890.75 - Step 6: Final answer
x = 220,568.09
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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.