Finding the Fourth Proportional to 306,363.87, 459,265.68 and 128,883.42
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Solution
The fourth proportional to 306,363.87, 459,265.68 and 128,883.42 is: 193,207.28
Step by Step Solution
- Step 1: Write the proportion equation
306,363.87 : 459,265.68 = 128,883.42 : x - Step 2: Convert to fraction form
306,363.87/459,265.68 = 128,883.42/x - Step 3: Cross multiply
306,363.87x = 459,265.68 × 128,883.42 - Step 4: Simplify right side
306,363.87x = 59,191,731,527.03 - Step 5: Solve for x
x = 59,191,731,527.03/306,363.87 - Step 6: Final answer
x = 193,207.28
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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.