Finding the Fourth Proportional to 212,708.66, 293,539.89 and 117,218.78
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Solution
The fourth proportional to 212,708.66, 293,539.89 and 117,218.78 is: 161,762.99
Step by Step Solution
- Step 1: Write the proportion equation
212,708.66 : 293,539.89 = 117,218.78 : x - Step 2: Convert to fraction form
212,708.66/293,539.89 = 117,218.78/x - Step 3: Cross multiply
212,708.66x = 293,539.89 × 117,218.78 - Step 4: Simplify right side
212,708.66x = 34,408,387,787.13 - Step 5: Solve for x
x = 34,408,387,787.13/212,708.66 - Step 6: Final answer
x = 161,762.99
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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.