Finding the Fourth Proportional to 212,712.68, 293,539.75 and 115,917.41
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Solution
The fourth proportional to 212,712.68, 293,539.75 and 115,917.41 is: 159,963.98
Step by Step Solution
- Step 1: Write the proportion equation
212,712.68 : 293,539.75 = 115,917.41 : x - Step 2: Convert to fraction form
212,712.68/293,539.75 = 115,917.41/x - Step 3: Cross multiply
212,712.68x = 293,539.75 × 115,917.41 - Step 4: Simplify right side
212,712.68x = 34,026,367,996.10 - Step 5: Solve for x
x = 34,026,367,996.10/212,712.68 - Step 6: Final answer
x = 159,963.98
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1.5x scale
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.