Finding the Fourth Proportional to 342,657.36, 472,911.21 and 206,764.65
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Solution
The fourth proportional to 342,657.36, 472,911.21 and 206,764.65 is: 285,361.80
Step by Step Solution
- Step 1: Write the proportion equation
342,657.36 : 472,911.21 = 206,764.65 : x - Step 2: Convert to fraction form
342,657.36/472,911.21 = 206,764.65/x - Step 3: Cross multiply
342,657.36x = 472,911.21 × 206,764.65 - Step 4: Simplify right side
342,657.36x = 97,781,320,816.73 - Step 5: Solve for x
x = 97,781,320,816.73/342,657.36 - Step 6: Final answer
x = 285,361.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.