Finding the Fourth Proportional to 211,170.81, 291,415.70 and 115,677.48
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Solution
The fourth proportional to 211,170.81, 291,415.70 and 115,677.48 is: 159,634.91
Step by Step Solution
- Step 1: Write the proportion equation
211,170.81 : 291,415.70 = 115,677.48 : x - Step 2: Convert to fraction form
211,170.81/291,415.70 = 115,677.48/x - Step 3: Cross multiply
211,170.81x = 291,415.70 × 115,677.48 - Step 4: Simplify right side
211,170.81x = 33,710,234,097.63 - Step 5: Solve for x
x = 33,710,234,097.63/211,170.81 - Step 6: Final answer
x = 159,634.91
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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.