Finding the Fourth Proportional to 315,133.80, 472,349.52 and 165,391.08
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Solution
The fourth proportional to 315,133.80, 472,349.52 and 165,391.08 is: 247,902.31
Step by Step Solution
- Step 1: Write the proportion equation
315,133.80 : 472,349.52 = 165,391.08 : x - Step 2: Convert to fraction form
315,133.80/472,349.52 = 165,391.08/x - Step 3: Cross multiply
315,133.80x = 472,349.52 × 165,391.08 - Step 4: Simplify right side
315,133.80x = 78,122,397,250.28 - Step 5: Solve for x
x = 78,122,397,250.28/315,133.80 - Step 6: Final answer
x = 247,902.31
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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.