Finding the Fourth Proportional to 186,904.13, 280,257.68 and 81,600.08
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Solution
The fourth proportional to 186,904.13, 280,257.68 and 81,600.08 is: 122,357.11
Step by Step Solution
- Step 1: Write the proportion equation
186,904.13 : 280,257.68 = 81,600.08 : x - Step 2: Convert to fraction form
186,904.13/280,257.68 = 81,600.08/x - Step 3: Cross multiply
186,904.13x = 280,257.68 × 81,600.08 - Step 4: Simplify right side
186,904.13x = 22,869,048,350.29 - Step 5: Solve for x
x = 22,869,048,350.29/186,904.13 - Step 6: Final answer
x = 122,357.11
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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.