Finding the Fourth Proportional to 284,237.13, 392,247.18 and 156,912.69
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Solution
The fourth proportional to 284,237.13, 392,247.18 and 156,912.69 is: 216,539.48
Step by Step Solution
- Step 1: Write the proportion equation
284,237.13 : 392,247.18 = 156,912.69 : x - Step 2: Convert to fraction form
284,237.13/392,247.18 = 156,912.69/x - Step 3: Cross multiply
284,237.13x = 392,247.18 × 156,912.69 - Step 4: Simplify right side
284,237.13x = 61,548,560,158.71 - Step 5: Solve for x
x = 61,548,560,158.71/284,237.13 - Step 6: Final answer
x = 216,539.48
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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.