Finding the Fourth Proportional to 154,278.99, 212,524.44 and 131,543.91
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Solution
The fourth proportional to 154,278.99, 212,524.44 and 131,543.91 is: 181,206.11
Step by Step Solution
- Step 1: Write the proportion equation
154,278.99 : 212,524.44 = 131,543.91 : x - Step 2: Convert to fraction form
154,278.99/212,524.44 = 131,543.91/x - Step 3: Cross multiply
154,278.99x = 212,524.44 × 131,543.91 - Step 4: Simplify right side
154,278.99x = 27,956,295,808.16 - Step 5: Solve for x
x = 27,956,295,808.16/154,278.99 - Step 6: Final answer
x = 181,206.11
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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.