Finding the Fourth Proportional to 251,964.68, 347,711.73 and 137,242.97
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Solution
The fourth proportional to 251,964.68, 347,711.73 and 137,242.97 is: 189,395.55
Step by Step Solution
- Step 1: Write the proportion equation
251,964.68 : 347,711.73 = 137,242.97 : x - Step 2: Convert to fraction form
251,964.68/347,711.73 = 137,242.97/x - Step 3: Cross multiply
251,964.68x = 347,711.73 × 137,242.97 - Step 4: Simplify right side
251,964.68x = 47,720,988,790.48 - Step 5: Solve for x
x = 47,720,988,790.48/251,964.68 - Step 6: Final answer
x = 189,395.55
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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.