Finding the Fourth Proportional to 288,542.81, 432,821.60 and 136,704.34
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Solution
The fourth proportional to 288,542.81, 432,821.60 and 136,704.34 is: 205,060.02
Step by Step Solution
- Step 1: Write the proportion equation
288,542.81 : 432,821.60 = 136,704.34 : x - Step 2: Convert to fraction form
288,542.81/432,821.60 = 136,704.34/x - Step 3: Cross multiply
288,542.81x = 432,821.60 × 136,704.34 - Step 4: Simplify right side
288,542.81x = 59,168,593,116.39 - Step 5: Solve for x
x = 59,168,593,116.39/288,542.81 - Step 6: Final answer
x = 205,060.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.