Finding the Fourth Proportional to 212,730.25, 293,563.81 and 115,934.88
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Solution
The fourth proportional to 212,730.25, 293,563.81 and 115,934.88 is: 159,987.99
Step by Step Solution
- Step 1: Write the proportion equation
212,730.25 : 293,563.81 = 115,934.88 : x - Step 2: Convert to fraction form
212,730.25/293,563.81 = 115,934.88/x - Step 3: Cross multiply
212,730.25x = 293,563.81 × 115,934.88 - Step 4: Simplify right side
212,730.25x = 34,034,285,084.69 - Step 5: Solve for x
x = 34,034,285,084.69/212,730.25 - Step 6: Final answer
x = 159,987.99
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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.