Finding the Fourth Proportional to 292,372.98, 438,734.40 and 126,160.98
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Solution
The fourth proportional to 292,372.98, 438,734.40 and 126,160.98 is: 189,316.95
Step by Step Solution
- Step 1: Write the proportion equation
292,372.98 : 438,734.40 = 126,160.98 : x - Step 2: Convert to fraction form
292,372.98/438,734.40 = 126,160.98/x - Step 3: Cross multiply
292,372.98x = 438,734.40 × 126,160.98 - Step 4: Simplify right side
292,372.98x = 55,351,161,863.71 - Step 5: Solve for x
x = 55,351,161,863.71/292,372.98 - Step 6: Final answer
x = 189,316.95
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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.