Finding the Fourth Proportional to 284,367.36, 392,424.80 and 157,041.92
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Solution
The fourth proportional to 284,367.36, 392,424.80 and 157,041.92 is: 216,716.66
Step by Step Solution
- Step 1: Write the proportion equation
284,367.36 : 392,424.80 = 157,041.92 : x - Step 2: Convert to fraction form
284,367.36/392,424.80 = 157,041.92/x - Step 3: Cross multiply
284,367.36x = 392,424.80 × 157,041.92 - Step 4: Simplify right side
284,367.36x = 61,627,144,047.62 - Step 5: Solve for x
x = 61,627,144,047.62/284,367.36 - Step 6: Final answer
x = 216,716.66
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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.