Finding the Fourth Proportional to 284,495.88, 392,575.86 and 157,163.28
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Solution
The fourth proportional to 284,495.88, 392,575.86 and 157,163.28 is: 216,869.61
Step by Step Solution
- Step 1: Write the proportion equation
284,495.88 : 392,575.86 = 157,163.28 : x - Step 2: Convert to fraction form
284,495.88/392,575.86 = 157,163.28/x - Step 3: Cross multiply
284,495.88x = 392,575.86 × 157,163.28 - Step 4: Simplify right side
284,495.88x = 61,698,509,806.42 - Step 5: Solve for x
x = 61,698,509,806.42/284,495.88 - Step 6: Final answer
x = 216,869.61
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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.