Finding the Fourth Proportional to 245,777.28, 339,173.40 and 138,348.96
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Solution
The fourth proportional to 245,777.28, 339,173.40 and 138,348.96 is: 190,921.99
Step by Step Solution
- Step 1: Write the proportion equation
245,777.28 : 339,173.40 = 138,348.96 : x - Step 2: Convert to fraction form
245,777.28/339,173.40 = 138,348.96/x - Step 3: Cross multiply
245,777.28x = 339,173.40 × 138,348.96 - Step 4: Simplify right side
245,777.28x = 46,924,287,149.66 - Step 5: Solve for x
x = 46,924,287,149.66/245,777.28 - Step 6: Final answer
x = 190,921.99
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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.