Finding the Fourth Proportional to 212,798.26, 319,247.07 and 72,557.02
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Solution
The fourth proportional to 212,798.26, 319,247.07 and 72,557.02 is: 108,852.47
Step by Step Solution
- Step 1: Write the proportion equation
212,798.26 : 319,247.07 = 72,557.02 : x - Step 2: Convert to fraction form
212,798.26/319,247.07 = 72,557.02/x - Step 3: Cross multiply
212,798.26x = 319,247.07 × 72,557.02 - Step 4: Simplify right side
212,798.26x = 23,163,616,042.93 - Step 5: Solve for x
x = 23,163,616,042.93/212,798.26 - Step 6: Final answer
x = 108,852.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.