Finding the Fourth Proportional to 284,754.12, 392,944.98 and 157,422.12
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Solution
The fourth proportional to 284,754.12, 392,944.98 and 157,422.12 is: 217,233.84
Step by Step Solution
- Step 1: Write the proportion equation
284,754.12 : 392,944.98 = 157,422.12 : x - Step 2: Convert to fraction form
284,754.12/392,944.98 = 157,422.12/x - Step 3: Cross multiply
284,754.12x = 392,944.98 × 157,422.12 - Step 4: Simplify right side
284,754.12x = 61,858,231,794.96 - Step 5: Solve for x
x = 61,858,231,794.96/284,754.12 - Step 6: Final answer
x = 217,233.84
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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.