Finding the Fourth Proportional to 279,135.11, 385,119.56 and 158,266.91
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Solution
The fourth proportional to 279,135.11, 385,119.56 and 158,266.91 is: 218,359.07
Step by Step Solution
- Step 1: Write the proportion equation
279,135.11 : 385,119.56 = 158,266.91 : x - Step 2: Convert to fraction form
279,135.11/385,119.56 = 158,266.91/x - Step 3: Cross multiply
279,135.11x = 385,119.56 × 158,266.91 - Step 4: Simplify right side
279,135.11x = 60,951,681,950.43 - Step 5: Solve for x
x = 60,951,681,950.43/279,135.11 - Step 6: Final answer
x = 218,359.07
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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.