Finding the Fourth Proportional to 284,889.38, 393,122.85 and 157,533.08
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Solution
The fourth proportional to 284,889.38, 393,122.85 and 157,533.08 is: 217,382.11
Step by Step Solution
- Step 1: Write the proportion equation
284,889.38 : 393,122.85 = 157,533.08 : x - Step 2: Convert to fraction form
284,889.38/393,122.85 = 157,533.08/x - Step 3: Cross multiply
284,889.38x = 393,122.85 × 157,533.08 - Step 4: Simplify right side
284,889.38x = 61,929,853,378.88 - Step 5: Solve for x
x = 61,929,853,378.88/284,889.38 - Step 6: Final answer
x = 217,382.11
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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.