Finding the Fourth Proportional to 339,929.06, 469,138.84 and 212,645.66
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Solution
The fourth proportional to 339,929.06, 469,138.84 and 212,645.66 is: 293,473.99
Step by Step Solution
- Step 1: Write the proportion equation
339,929.06 : 469,138.84 = 212,645.66 : x - Step 2: Convert to fraction form
339,929.06/469,138.84 = 212,645.66/x - Step 3: Cross multiply
339,929.06x = 469,138.84 × 212,645.66 - Step 4: Simplify right side
339,929.06x = 99,760,335,386.13 - Step 5: Solve for x
x = 99,760,335,386.13/339,929.06 - Step 6: Final answer
x = 293,473.99
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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.