Finding the Fourth Proportional to 212,569.64, 293,340.10 and 115,771.30
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Solution
The fourth proportional to 212,569.64, 293,340.10 and 115,771.30 is: 159,761.12
Step by Step Solution
- Step 1: Write the proportion equation
212,569.64 : 293,340.10 = 115,771.30 : x - Step 2: Convert to fraction form
212,569.64/293,340.10 = 115,771.30/x - Step 3: Cross multiply
212,569.64x = 293,340.10 × 115,771.30 - Step 4: Simplify right side
212,569.64x = 33,960,364,719.13 - Step 5: Solve for x
x = 33,960,364,719.13/212,569.64 - Step 6: Final answer
x = 159,761.12
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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.