Finding the Fourth Proportional to 381,602.40, 572,403.60 and 115,549.80
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Solution
The fourth proportional to 381,602.40, 572,403.60 and 115,549.80 is: 173,324.70
Step by Step Solution
- Step 1: Write the proportion equation
381,602.40 : 572,403.60 = 115,549.80 : x - Step 2: Convert to fraction form
381,602.40/572,403.60 = 115,549.80/x - Step 3: Cross multiply
381,602.40x = 572,403.60 × 115,549.80 - Step 4: Simplify right side
381,602.40x = 66,141,121,499.28 - Step 5: Solve for x
x = 66,141,121,499.28/381,602.40 - Step 6: Final answer
x = 173,324.70
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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.