Finding the Fourth Proportional to 261,751.91, 361,122.75 and 148,509.05
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Solution
The fourth proportional to 261,751.91, 361,122.75 and 148,509.05 is: 204,888.65
Step by Step Solution
- Step 1: Write the proportion equation
261,751.91 : 361,122.75 = 148,509.05 : x - Step 2: Convert to fraction form
261,751.91/361,122.75 = 148,509.05/x - Step 3: Cross multiply
261,751.91x = 361,122.75 × 148,509.05 - Step 4: Simplify right side
261,751.91x = 53,629,994,730.27 - Step 5: Solve for x
x = 53,629,994,730.27/261,751.91 - Step 6: Final answer
x = 204,888.65
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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.