Finding the Fourth Proportional to 284,491.19, 392,625.01 and 155,449.28
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Solution
The fourth proportional to 284,491.19, 392,625.01 and 155,449.28 is: 214,534.85
Step by Step Solution
- Step 1: Write the proportion equation
284,491.19 : 392,625.01 = 155,449.28 : x - Step 2: Convert to fraction form
284,491.19/392,625.01 = 155,449.28/x - Step 3: Cross multiply
284,491.19x = 392,625.01 × 155,449.28 - Step 4: Simplify right side
284,491.19x = 61,033,275,318.81 - Step 5: Solve for x
x = 61,033,275,318.81/284,491.19 - Step 6: Final answer
x = 214,534.85
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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.