Finding the Fourth Proportional to 212,476.36, 318,711.66 and 72,332.68
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Solution
The fourth proportional to 212,476.36, 318,711.66 and 72,332.68 is: 108,498.04
Step by Step Solution
- Step 1: Write the proportion equation
212,476.36 : 318,711.66 = 72,332.68 : x - Step 2: Convert to fraction form
212,476.36/318,711.66 = 72,332.68/x - Step 3: Cross multiply
212,476.36x = 318,711.66 × 72,332.68 - Step 4: Simplify right side
212,476.36x = 23,053,268,515.05 - Step 5: Solve for x
x = 23,053,268,515.05/212,476.36 - Step 6: Final answer
x = 108,498.04
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.