Finding the Fourth Proportional to 288,688.05, 398,376.97 and 157,863.33
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Solution
The fourth proportional to 288,688.05, 398,376.97 and 157,863.33 is: 217,844.54
Step by Step Solution
- Step 1: Write the proportion equation
288,688.05 : 398,376.97 = 157,863.33 : x - Step 2: Convert to fraction form
288,688.05/398,376.97 = 157,863.33/x - Step 3: Cross multiply
288,688.05x = 398,376.97 × 157,863.33 - Step 4: Simplify right side
288,688.05x = 62,889,114,684.85 - Step 5: Solve for x
x = 62,889,114,684.85/288,688.05 - Step 6: Final answer
x = 217,844.54
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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.