Finding the Fourth Proportional to 284,463.68, 392,558.63 and 157,139.26
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Solution
The fourth proportional to 284,463.68, 392,558.63 and 157,139.26 is: 216,851.49
Step by Step Solution
- Step 1: Write the proportion equation
284,463.68 : 392,558.63 = 157,139.26 : x - Step 2: Convert to fraction form
284,463.68/392,558.63 = 157,139.26/x - Step 3: Cross multiply
284,463.68x = 392,558.63 × 157,139.26 - Step 4: Simplify right side
284,463.68x = 61,686,370,857.72 - Step 5: Solve for x
x = 61,686,370,857.72/284,463.68 - Step 6: Final answer
x = 216,851.49
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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.