Finding the Fourth Proportional to 212,039.34, 292,616.52 and 115,243.17
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Solution
The fourth proportional to 212,039.34, 292,616.52 and 115,243.17 is: 159,036.79
Step by Step Solution
- Step 1: Write the proportion equation
212,039.34 : 292,616.52 = 115,243.17 : x - Step 2: Convert to fraction form
212,039.34/292,616.52 = 115,243.17/x - Step 3: Cross multiply
212,039.34x = 292,616.52 × 115,243.17 - Step 4: Simplify right side
212,039.34x = 33,722,055,359.17 - Step 5: Solve for x
x = 33,722,055,359.17/212,039.34 - Step 6: Final answer
x = 159,036.79
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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.