Finding the Fourth Proportional to 279,407.88, 385,591.13 and 197,881.99
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Solution
The fourth proportional to 279,407.88, 385,591.13 and 197,881.99 is: 273,082.99
Step by Step Solution
- Step 1: Write the proportion equation
279,407.88 : 385,591.13 = 197,881.99 : x - Step 2: Convert to fraction form
279,407.88/385,591.13 = 197,881.99/x - Step 3: Cross multiply
279,407.88x = 385,591.13 × 197,881.99 - Step 4: Simplify right side
279,407.88x = 76,301,538,177.36 - Step 5: Solve for x
x = 76,301,538,177.36/279,407.88 - Step 6: Final answer
x = 273,082.99
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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.