Finding the Fourth Proportional to 284,181.18, 392,168.14 and 155,119.14
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Solution
The fourth proportional to 284,181.18, 392,168.14 and 155,119.14 is: 214,063.38
Step by Step Solution
- Step 1: Write the proportion equation
284,181.18 : 392,168.14 = 155,119.14 : x - Step 2: Convert to fraction form
284,181.18/392,168.14 = 155,119.14/x - Step 3: Cross multiply
284,181.18x = 392,168.14 × 155,119.14 - Step 4: Simplify right side
284,181.18x = 60,832,784,612.20 - Step 5: Solve for x
x = 60,832,784,612.20/284,181.18 - Step 6: Final answer
x = 214,063.38
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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.