Finding the Fourth Proportional to 210,891.31, 291,029.68 and 115,397.98
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Solution
The fourth proportional to 210,891.31, 291,029.68 and 115,397.98 is: 159,249.03
Step by Step Solution
- Step 1: Write the proportion equation
210,891.31 : 291,029.68 = 115,397.98 : x - Step 2: Convert to fraction form
210,891.31/291,029.68 = 115,397.98/x - Step 3: Cross multiply
210,891.31x = 291,029.68 × 115,397.98 - Step 4: Simplify right side
210,891.31x = 33,584,237,192.05 - Step 5: Solve for x
x = 33,584,237,192.05/210,891.31 - Step 6: Final answer
x = 159,249.03
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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.