Finding the Fourth Proportional to 292,085.09, 438,205.26 and 92,409.02
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Solution
The fourth proportional to 292,085.09, 438,205.26 and 92,409.02 is: 138,638.09
Step by Step Solution
- Step 1: Write the proportion equation
292,085.09 : 438,205.26 = 92,409.02 : x - Step 2: Convert to fraction form
292,085.09/438,205.26 = 92,409.02/x - Step 3: Cross multiply
292,085.09x = 438,205.26 × 92,409.02 - Step 4: Simplify right side
292,085.09x = 40,494,118,635.45 - Step 5: Solve for x
x = 40,494,118,635.45/292,085.09 - Step 6: Final answer
x = 138,638.09
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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.