Finding the Fourth Proportional to 306,713.80, 460,070.70 and 85,097.80
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Solution
The fourth proportional to 306,713.80, 460,070.70 and 85,097.80 is: 127,646.70
Step by Step Solution
- Step 1: Write the proportion equation
306,713.80 : 460,070.70 = 85,097.80 : x - Step 2: Convert to fraction form
306,713.80/460,070.70 = 85,097.80/x - Step 3: Cross multiply
306,713.80x = 460,070.70 × 85,097.80 - Step 4: Simplify right side
306,713.80x = 39,151,004,414.46 - Step 5: Solve for x
x = 39,151,004,414.46/306,713.80 - Step 6: Final answer
x = 127,646.70
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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.