Finding the Fourth Proportional to 284,116.66, 392,090.40 and 155,062.18
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Solution
The fourth proportional to 284,116.66, 392,090.40 and 155,062.18 is: 213,990.94
Step by Step Solution
- Step 1: Write the proportion equation
284,116.66 : 392,090.40 = 155,062.18 : x - Step 2: Convert to fraction form
284,116.66/392,090.40 = 155,062.18/x - Step 3: Cross multiply
284,116.66x = 392,090.40 × 155,062.18 - Step 4: Simplify right side
284,116.66x = 60,798,392,181.07 - Step 5: Solve for x
x = 60,798,392,181.07/284,116.66 - Step 6: Final answer
x = 213,990.94
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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.