Finding the Fourth Proportional to 306,483.75, 459,725.63 and 84,867.75
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Solution
The fourth proportional to 306,483.75, 459,725.63 and 84,867.75 is: 127,301.63
Step by Step Solution
- Step 1: Write the proportion equation
306,483.75 : 459,725.63 = 84,867.75 : x - Step 2: Convert to fraction form
306,483.75/459,725.63 = 84,867.75/x - Step 3: Cross multiply
306,483.75x = 459,725.63 × 84,867.75 - Step 4: Simplify right side
306,483.75x = 39,015,879,411.09 - Step 5: Solve for x
x = 39,015,879,411.09/306,483.75 - Step 6: Final answer
x = 127,301.63
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1.5x scale
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.