Finding the Fourth Proportional to 284,970.13, 393,224.75 and 157,628.41
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Solution
The fourth proportional to 284,970.13, 393,224.75 and 157,628.41 is: 217,508.38
Step by Step Solution
- Step 1: Write the proportion equation
284,970.13 : 393,224.75 = 157,628.41 : x - Step 2: Convert to fraction form
284,970.13/393,224.75 = 157,628.41/x - Step 3: Cross multiply
284,970.13x = 393,224.75 × 157,628.41 - Step 4: Simplify right side
284,970.13x = 61,983,392,115.15 - Step 5: Solve for x
x = 61,983,392,115.15/284,970.13 - Step 6: Final answer
x = 217,508.38
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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.