Finding the Fourth Proportional to 186,778.68, 280,358.69 and 136,710.05
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Solution
The fourth proportional to 186,778.68, 280,358.69 and 136,710.05 is: 205,204.63
Step by Step Solution
- Step 1: Write the proportion equation
186,778.68 : 280,358.69 = 136,710.05 : x - Step 2: Convert to fraction form
186,778.68/280,358.69 = 136,710.05/x - Step 3: Cross multiply
186,778.68x = 280,358.69 × 136,710.05 - Step 4: Simplify right side
186,778.68x = 38,327,848,442.49 - Step 5: Solve for x
x = 38,327,848,442.49/186,778.68 - Step 6: Final answer
x = 205,204.63
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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.