Finding the Fourth Proportional to 178,784.49, 246,619.46 and 107,122.99
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Solution
The fourth proportional to 178,784.49, 246,619.46 and 107,122.99 is: 147,767.93
Step by Step Solution
- Step 1: Write the proportion equation
178,784.49 : 246,619.46 = 107,122.99 : x - Step 2: Convert to fraction form
178,784.49/246,619.46 = 107,122.99/x - Step 3: Cross multiply
178,784.49x = 246,619.46 × 107,122.99 - Step 4: Simplify right side
178,784.49x = 26,418,613,947.39 - Step 5: Solve for x
x = 26,418,613,947.39/178,784.49 - Step 6: Final answer
x = 147,767.93
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.