Finding the Fourth Proportional to 292,728.19, 439,239.84 and 115,362.49
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Solution
The fourth proportional to 292,728.19, 439,239.84 and 115,362.49 is: 173,101.89
Step by Step Solution
- Step 1: Write the proportion equation
292,728.19 : 439,239.84 = 115,362.49 : x - Step 2: Convert to fraction form
292,728.19/439,239.84 = 115,362.49/x - Step 3: Cross multiply
292,728.19x = 439,239.84 × 115,362.49 - Step 4: Simplify right side
292,728.19x = 50,671,801,649.60 - Step 5: Solve for x
x = 50,671,801,649.60/292,728.19 - Step 6: Final answer
x = 173,101.89
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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.