Finding the Fourth Proportional to 292,368.96, 438,728.42 and 126,156.96
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Solution
The fourth proportional to 292,368.96, 438,728.42 and 126,156.96 is: 189,310.94
Step by Step Solution
- Step 1: Write the proportion equation
292,368.96 : 438,728.42 = 126,156.96 : x - Step 2: Convert to fraction form
292,368.96/438,728.42 = 126,156.96/x - Step 3: Cross multiply
292,368.96x = 438,728.42 × 126,156.96 - Step 4: Simplify right side
292,368.96x = 55,348,643,732.80 - Step 5: Solve for x
x = 55,348,643,732.80/292,368.96 - Step 6: Final answer
x = 189,310.94
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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.