Finding the Fourth Proportional to 284,494.40, 392,599.32 and 157,161.68
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Solution
The fourth proportional to 284,494.40, 392,599.32 and 157,161.68 is: 216,881.49
Step by Step Solution
- Step 1: Write the proportion equation
284,494.40 : 392,599.32 = 157,161.68 : x - Step 2: Convert to fraction form
284,494.40/392,599.32 = 157,161.68/x - Step 3: Cross multiply
284,494.40x = 392,599.32 × 157,161.68 - Step 4: Simplify right side
284,494.40x = 61,701,568,698.06 - Step 5: Solve for x
x = 61,701,568,698.06/284,494.40 - Step 6: Final answer
x = 216,881.49
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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.