Finding the Fourth Proportional to 245,779.68, 339,172.20 and 138,349.38
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Solution
The fourth proportional to 245,779.68, 339,172.20 and 138,349.38 is: 190,920.03
Step by Step Solution
- Step 1: Write the proportion equation
245,779.68 : 339,172.20 = 138,349.38 : x - Step 2: Convert to fraction form
245,779.68/339,172.20 = 138,349.38/x - Step 3: Cross multiply
245,779.68x = 339,172.20 × 138,349.38 - Step 4: Simplify right side
245,779.68x = 46,924,263,583.24 - Step 5: Solve for x
x = 46,924,263,583.24/245,779.68 - Step 6: Final answer
x = 190,920.03
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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.