Finding the Fourth Proportional to 284,118.14, 392,085.29 and 155,057.63
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Solution
The fourth proportional to 284,118.14, 392,085.29 and 155,057.63 is: 213,980.76
Step by Step Solution
- Step 1: Write the proportion equation
284,118.14 : 392,085.29 = 155,057.63 : x - Step 2: Convert to fraction form
284,118.14/392,085.29 = 155,057.63/x - Step 3: Cross multiply
284,118.14x = 392,085.29 × 155,057.63 - Step 4: Simplify right side
284,118.14x = 60,795,816,030.19 - Step 5: Solve for x
x = 60,795,816,030.19/284,118.14 - Step 6: Final answer
x = 213,980.76
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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.