Finding the Fourth Proportional to 251,962.80, 347,709.14 and 137,241.09
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Solution
The fourth proportional to 251,962.80, 347,709.14 and 137,241.09 is: 189,392.96
Step by Step Solution
- Step 1: Write the proportion equation
251,962.80 : 347,709.14 = 137,241.09 : x - Step 2: Convert to fraction form
251,962.80/347,709.14 = 137,241.09/x - Step 3: Cross multiply
251,962.80x = 347,709.14 × 137,241.09 - Step 4: Simplify right side
251,962.80x = 47,719,980,690.36 - Step 5: Solve for x
x = 47,719,980,690.36/251,962.80 - Step 6: Final answer
x = 189,392.96
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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.