Finding the Fourth Proportional to 229,081.68, 343,415.16 and 81,303.12
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Solution
The fourth proportional to 229,081.68, 343,415.16 and 81,303.12 is: 121,881.09
Step by Step Solution
- Step 1: Write the proportion equation
229,081.68 : 343,415.16 = 81,303.12 : x - Step 2: Convert to fraction form
229,081.68/343,415.16 = 81,303.12/x - Step 3: Cross multiply
229,081.68x = 343,415.16 × 81,303.12 - Step 4: Simplify right side
229,081.68x = 27,920,723,963.30 - Step 5: Solve for x
x = 27,920,723,963.30/229,081.68 - Step 6: Final answer
x = 121,881.09
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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.