Finding the Fourth Proportional to 292,368.97, 438,728.41 and 126,156.97
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Solution
The fourth proportional to 292,368.97, 438,728.41 and 126,156.97 is: 189,310.95
Step by Step Solution
- Step 1: Write the proportion equation
292,368.97 : 438,728.41 = 126,156.97 : x - Step 2: Convert to fraction form
292,368.97/438,728.41 = 126,156.97/x - Step 3: Cross multiply
292,368.97x = 438,728.41 × 126,156.97 - Step 4: Simplify right side
292,368.97x = 55,348,646,858.52 - Step 5: Solve for x
x = 55,348,646,858.52/292,368.97 - Step 6: Final answer
x = 189,310.95
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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.