Finding the Fourth Proportional to 291,743.40, 437,615.10 and 268,933.80
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Solution
The fourth proportional to 291,743.40, 437,615.10 and 268,933.80 is: 403,400.70
Step by Step Solution
- Step 1: Write the proportion equation
291,743.40 : 437,615.10 = 268,933.80 : x - Step 2: Convert to fraction form
291,743.40/437,615.10 = 268,933.80/x - Step 3: Cross multiply
291,743.40x = 437,615.10 × 268,933.80 - Step 4: Simplify right side
291,743.40x = 117,689,491,780.38 - Step 5: Solve for x
x = 117,689,491,780.38/291,743.40 - Step 6: Final answer
x = 403,400.70
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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.