Finding the Fourth Proportional to 211,231.74, 316,439.33 and 117,453.18
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Solution
The fourth proportional to 211,231.74, 316,439.33 and 117,453.18 is: 175,952.75
Step by Step Solution
- Step 1: Write the proportion equation
211,231.74 : 316,439.33 = 117,453.18 : x - Step 2: Convert to fraction form
211,231.74/316,439.33 = 117,453.18/x - Step 3: Cross multiply
211,231.74x = 316,439.33 × 117,453.18 - Step 4: Simplify right side
211,231.74x = 37,166,804,998.30 - Step 5: Solve for x
x = 37,166,804,998.30/211,231.74 - Step 6: Final answer
x = 175,952.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.