Finding the Fourth Proportional to 289,453.14, 399,640.26 and 180,723.02
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Solution
The fourth proportional to 289,453.14, 399,640.26 and 180,723.02 is: 249,519.47
Step by Step Solution
- Step 1: Write the proportion equation
289,453.14 : 399,640.26 = 180,723.02 : x - Step 2: Convert to fraction form
289,453.14/399,640.26 = 180,723.02/x - Step 3: Cross multiply
289,453.14x = 399,640.26 × 180,723.02 - Step 4: Simplify right side
289,453.14x = 72,224,192,702.58 - Step 5: Solve for x
x = 72,224,192,702.58/289,453.14 - Step 6: Final answer
x = 249,519.47
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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.