Finding the Fourth Proportional to 211,270.76, 291,560.74 and 115,776.62
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Solution
The fourth proportional to 211,270.76, 291,560.74 and 115,776.62 is: 159,775.62
Step by Step Solution
- Step 1: Write the proportion equation
211,270.76 : 291,560.74 = 115,776.62 : x - Step 2: Convert to fraction form
211,270.76/291,560.74 = 115,776.62/x - Step 3: Cross multiply
211,270.76x = 291,560.74 × 115,776.62 - Step 4: Simplify right side
211,270.76x = 33,755,917,001.90 - Step 5: Solve for x
x = 33,755,917,001.90/211,270.76 - Step 6: Final answer
x = 159,775.62
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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.