Finding the Fourth Proportional to 292,701.60, 438,728.40 and 115,149.60
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Solution
The fourth proportional to 292,701.60, 438,728.40 and 115,149.60 is: 172,596.94
Step by Step Solution
- Step 1: Write the proportion equation
292,701.60 : 438,728.40 = 115,149.60 : x - Step 2: Convert to fraction form
292,701.60/438,728.40 = 115,149.60/x - Step 3: Cross multiply
292,701.60x = 438,728.40 × 115,149.60 - Step 4: Simplify right side
292,701.60x = 50,519,399,768.64 - Step 5: Solve for x
x = 50,519,399,768.64/292,701.60 - Step 6: Final answer
x = 172,596.94
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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.