Finding the Fourth Proportional to 207,997.08, 287,036.01 and 117,372.30
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Solution
The fourth proportional to 207,997.08, 287,036.01 and 117,372.30 is: 161,973.80
Step by Step Solution
- Step 1: Write the proportion equation
207,997.08 : 287,036.01 = 117,372.30 : x - Step 2: Convert to fraction form
207,997.08/287,036.01 = 117,372.30/x - Step 3: Cross multiply
207,997.08x = 287,036.01 × 117,372.30 - Step 4: Simplify right side
207,997.08x = 33,690,076,676.52 - Step 5: Solve for x
x = 33,690,076,676.52/207,997.08 - Step 6: Final answer
x = 161,973.80
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1.5x scale
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.