Finding the Fourth Proportional to 288,711.07, 398,430.08 and 161,392.03
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Solution
The fourth proportional to 288,711.07, 398,430.08 and 161,392.03 is: 222,725.92
Step by Step Solution
- Step 1: Write the proportion equation
288,711.07 : 398,430.08 = 161,392.03 : x - Step 2: Convert to fraction form
288,711.07/398,430.08 = 161,392.03/x - Step 3: Cross multiply
288,711.07x = 398,430.08 × 161,392.03 - Step 4: Simplify right side
288,711.07x = 64,303,439,424.26 - Step 5: Solve for x
x = 64,303,439,424.26/288,711.07 - Step 6: Final answer
x = 222,725.92
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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.