Finding the Fourth Proportional to 292,373.48, 438,735.15 and 126,161.48
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Solution
The fourth proportional to 292,373.48, 438,735.15 and 126,161.48 is: 189,317.70
Step by Step Solution
- Step 1: Write the proportion equation
292,373.48 : 438,735.15 = 126,161.48 : x - Step 2: Convert to fraction form
292,373.48/438,735.15 = 126,161.48/x - Step 3: Cross multiply
292,373.48x = 438,735.15 × 126,161.48 - Step 4: Simplify right side
292,373.48x = 55,351,475,852.02 - Step 5: Solve for x
x = 55,351,475,852.02/292,373.48 - Step 6: Final answer
x = 189,317.70
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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.