Finding the Fourth Proportional to 288,009.09, 397,438.02 and 160,660.08
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Solution
The fourth proportional to 288,009.09, 397,438.02 and 160,660.08 is: 221,702.81
Step by Step Solution
- Step 1: Write the proportion equation
288,009.09 : 397,438.02 = 160,660.08 : x - Step 2: Convert to fraction form
288,009.09/397,438.02 = 160,660.08/x - Step 3: Cross multiply
288,009.09x = 397,438.02 × 160,660.08 - Step 4: Simplify right side
288,009.09x = 63,852,424,088.24 - Step 5: Solve for x
x = 63,852,424,088.24/288,009.09 - Step 6: Final answer
x = 221,702.81
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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.