Finding the Fourth Proportional to 315,090.07, 472,908.08 and 165,436.09
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Solution
The fourth proportional to 315,090.07, 472,908.08 and 165,436.09 is: 248,297.46
Step by Step Solution
- Step 1: Write the proportion equation
315,090.07 : 472,908.08 = 165,436.09 : x - Step 2: Convert to fraction form
315,090.07/472,908.08 = 165,436.09/x - Step 3: Cross multiply
315,090.07x = 472,908.08 × 165,436.09 - Step 4: Simplify right side
315,090.07x = 78,236,062,857.43 - Step 5: Solve for x
x = 78,236,062,857.43/315,090.07 - Step 6: Final answer
x = 248,297.46
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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.