Finding the Fourth Proportional to 212,060.07, 292,643.49 and 121,417.43
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Solution
The fourth proportional to 212,060.07, 292,643.49 and 121,417.43 is: 167,556.39
Step by Step Solution
- Step 1: Write the proportion equation
212,060.07 : 292,643.49 = 121,417.43 : x - Step 2: Convert to fraction form
212,060.07/292,643.49 = 121,417.43/x - Step 3: Cross multiply
212,060.07x = 292,643.49 × 121,417.43 - Step 4: Simplify right side
212,060.07x = 35,532,018,998.81 - Step 5: Solve for x
x = 35,532,018,998.81/212,060.07 - Step 6: Final answer
x = 167,556.39
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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.