Finding the Fourth Proportional to 253,971.36, 350,475.12 and 140,791.68
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Solution
The fourth proportional to 253,971.36, 350,475.12 and 140,791.68 is: 194,289.55
Step by Step Solution
- Step 1: Write the proportion equation
253,971.36 : 350,475.12 = 140,791.68 : x - Step 2: Convert to fraction form
253,971.36/350,475.12 = 140,791.68/x - Step 3: Cross multiply
253,971.36x = 350,475.12 × 140,791.68 - Step 4: Simplify right side
253,971.36x = 49,343,980,943.00 - Step 5: Solve for x
x = 49,343,980,943.00/253,971.36 - Step 6: Final answer
x = 194,289.55
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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.