Finding the Fourth Proportional to 288,751.94, 398,480.19 and 159,683.70
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Solution
The fourth proportional to 288,751.94, 398,480.19 and 159,683.70 is: 220,364.90
Step by Step Solution
- Step 1: Write the proportion equation
288,751.94 : 398,480.19 = 159,683.70 : x - Step 2: Convert to fraction form
288,751.94/398,480.19 = 159,683.70/x - Step 3: Cross multiply
288,751.94x = 398,480.19 × 159,683.70 - Step 4: Simplify right side
288,751.94x = 63,630,791,115.90 - Step 5: Solve for x
x = 63,630,791,115.90/288,751.94 - Step 6: Final answer
x = 220,364.90
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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.