Finding the Fourth Proportional to 231,491.10, 319,455.99 and 130,892.70
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Solution
The fourth proportional to 231,491.10, 319,455.99 and 130,892.70 is: 180,630.95
Step by Step Solution
- Step 1: Write the proportion equation
231,491.10 : 319,455.99 = 130,892.70 : x - Step 2: Convert to fraction form
231,491.10/319,455.99 = 130,892.70/x - Step 3: Cross multiply
231,491.10x = 319,455.99 × 130,892.70 - Step 4: Simplify right side
231,491.10x = 41,814,457,062.27 - Step 5: Solve for x
x = 41,814,457,062.27/231,491.10 - Step 6: Final answer
x = 180,630.95
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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.