Finding the Fourth Proportional to 210,961.08, 291,126.96 and 115,473.96
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Solution
The fourth proportional to 210,961.08, 291,126.96 and 115,473.96 is: 159,354.43
Step by Step Solution
- Step 1: Write the proportion equation
210,961.08 : 291,126.96 = 115,473.96 : x - Step 2: Convert to fraction form
210,961.08/291,126.96 = 115,473.96/x - Step 3: Cross multiply
210,961.08x = 291,126.96 × 115,473.96 - Step 4: Simplify right side
210,961.08x = 33,617,582,933.96 - Step 5: Solve for x
x = 33,617,582,933.96/210,961.08 - Step 6: Final answer
x = 159,354.43
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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.