Finding the Fourth Proportional to 315,092.07, 472,911.08 and 165,438.09
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Solution
The fourth proportional to 315,092.07, 472,911.08 and 165,438.09 is: 248,300.46
Step by Step Solution
- Step 1: Write the proportion equation
315,092.07 : 472,911.08 = 165,438.09 : x - Step 2: Convert to fraction form
315,092.07/472,911.08 = 165,438.09/x - Step 3: Cross multiply
315,092.07x = 472,911.08 × 165,438.09 - Step 4: Simplify right side
315,092.07x = 78,237,505,815.04 - Step 5: Solve for x
x = 78,237,505,815.04/315,092.07 - Step 6: Final answer
x = 248,300.46
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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.