Finding the Fourth Proportional to 252,885.26, 349,005.78 and 138,181.31
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Solution
The fourth proportional to 252,885.26, 349,005.78 and 138,181.31 is: 190,703.40
Step by Step Solution
- Step 1: Write the proportion equation
252,885.26 : 349,005.78 = 138,181.31 : x - Step 2: Convert to fraction form
252,885.26/349,005.78 = 138,181.31/x - Step 3: Cross multiply
252,885.26x = 349,005.78 × 138,181.31 - Step 4: Simplify right side
252,885.26x = 48,226,076,750.49 - Step 5: Solve for x
x = 48,226,076,750.49/252,885.26 - Step 6: Final answer
x = 190,703.40
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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.