Finding the Fourth Proportional to 291,489.40, 437,234.10 and 104,519.80
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Solution
The fourth proportional to 291,489.40, 437,234.10 and 104,519.80 is: 156,779.70
Step by Step Solution
- Step 1: Write the proportion equation
291,489.40 : 437,234.10 = 104,519.80 : x - Step 2: Convert to fraction form
291,489.40/437,234.10 = 104,519.80/x - Step 3: Cross multiply
291,489.40x = 437,234.10 × 104,519.80 - Step 4: Simplify right side
291,489.40x = 45,699,620,685.18 - Step 5: Solve for x
x = 45,699,620,685.18/291,489.40 - Step 6: Final answer
x = 156,779.70
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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.