Finding the Fourth Proportional to 212,547.12, 293,311.50 and 117,062.70
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Solution
The fourth proportional to 212,547.12, 293,311.50 and 117,062.70 is: 161,544.58
Step by Step Solution
- Step 1: Write the proportion equation
212,547.12 : 293,311.50 = 117,062.70 : x - Step 2: Convert to fraction form
212,547.12/293,311.50 = 117,062.70/x - Step 3: Cross multiply
212,547.12x = 293,311.50 × 117,062.70 - Step 4: Simplify right side
212,547.12x = 34,335,836,131.05 - Step 5: Solve for x
x = 34,335,836,131.05/212,547.12 - Step 6: Final answer
x = 161,544.58
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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.