Finding the Fourth Proportional to 261,896.94, 392,911.02 and 84,400.02
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Solution
The fourth proportional to 261,896.94, 392,911.02 and 84,400.02 is: 126,621.17
Step by Step Solution
- Step 1: Write the proportion equation
261,896.94 : 392,911.02 = 84,400.02 : x - Step 2: Convert to fraction form
261,896.94/392,911.02 = 84,400.02/x - Step 3: Cross multiply
261,896.94x = 392,911.02 × 84,400.02 - Step 4: Simplify right side
261,896.94x = 33,161,697,946.22 - Step 5: Solve for x
x = 33,161,697,946.22/261,896.94 - Step 6: Final answer
x = 126,621.17
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.