Finding the Fourth Proportional to 306,591.75, 459,913.55 and 84,975.75
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Solution
The fourth proportional to 306,591.75, 459,913.55 and 84,975.75 is: 127,470.81
Step by Step Solution
- Step 1: Write the proportion equation
306,591.75 : 459,913.55 = 84,975.75 : x - Step 2: Convert to fraction form
306,591.75/459,913.55 = 84,975.75/x - Step 3: Cross multiply
306,591.75x = 459,913.55 × 84,975.75 - Step 4: Simplify right side
306,591.75x = 39,081,498,421.53 - Step 5: Solve for x
x = 39,081,498,421.53/306,591.75 - Step 6: Final answer
x = 127,470.81
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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.