Finding the Fourth Proportional to 431,708.40, 647,368.20 and 194,929.20
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Solution
The fourth proportional to 431,708.40, 647,368.20 and 194,929.20 is: 292,306.02
Step by Step Solution
- Step 1: Write the proportion equation
431,708.40 : 647,368.20 = 194,929.20 : x - Step 2: Convert to fraction form
431,708.40/647,368.20 = 194,929.20/x - Step 3: Cross multiply
431,708.40x = 647,368.20 × 194,929.20 - Step 4: Simplify right side
431,708.40x = 126,190,965,331.44 - Step 5: Solve for x
x = 126,190,965,331.44/431,708.40 - Step 6: Final answer
x = 292,306.02
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.